Prompt:
def iscube(a):
    '''
    Write a function that takes an integer a and returns True
    if this ingeger is a cube of some integer number.
    Note: you may assume the input is always valid.
    Examples:
    iscube(1) ==> True
    iscube(2) ==> False
    iscube(-1) ==> True
    iscube(64) ==> True
    iscube(0) ==> True
    iscube(180) ==> False
    '''
    a = abs(

def check(candidate):

    # Check some simple cases
    assert candidate(1) == True, "First test error: " + str(candidate(1))
    assert candidate(2) == False, "Second test error: " + str(candidate(2))
    assert candidate(-1) == True, "Third test error: " + str(candidate(-1))
    assert candidate(64) == True, "Fourth test error: " + str(candidate(64))
    assert candidate(180) == False, "Fifth test error: " + str(candidate(180))
    assert candidate(1000) == True, "Sixth test error: " + str(candidate(1000))

    # Check some edge cases that are easy to work out by hand.
    assert candidate(0) == True, "1st edge test error: " + str(candidate(0))
    assert candidate(1729) == False, "2nd edge test error: " + str(candidate(1728))


Prompt:
def iscube(a):
    '''
    Write a function that takes an integer a and returns True
    if this ingeger is a cube of some integer number.
    Note: you may assume the input is always valid.
    Examples:
    iscube(1) ==> True
    iscube(2) ==> False
    iscube(-1) ==> True
    iscube(64) ==> True
    iscube(0) ==> True
    iscube(180) ==> False
    '''

def check(candidate):

    # Check some simple cases
    assert candidate(1) == True, "First test error: " + str(candidate(1))
    assert candidate(2) == False, "Second test error: " + str(candidate(2))
    assert candidate(-1) == True, "Third test error: " + str(candidate(-1))
    assert candidate(64) == True, "Fourth test error: " + str(candidate(64))
    assert candidate(180) == False, "Fifth test error: " + str(candidate(180))
    assert candidate(1000) == True, "Sixth test error: " + str(candidate(1000))

    # Check some edge cases that are easy to work out by hand.
    assert candidate(0) == True, "1st edge test error: " + str(candidate(0))
    assert candidate(1729) == False, "2nd edge test error: " + str(candidate(1728))


Prompt:
def iscube(a):
    '''
    Write a function that takes an integer a and returns True
    if this ingeger is a cube of some integer number.
    Note: you may assume the input is always valid.
    Examples:
    iscube(1) ==> True
    iscube(2) ==> False
    iscube(-1) ==> True
    iscube(64) ==> True
    iscube(0) ==> True
    iscube(180) ==> False
    '''
    a = abs(a)

def check(candidate):

    # Check some simple cases
    assert candidate(1) == True, "First test error: " + str(candidate(1))
    assert candidate(2) == False, "Second test error: " + str(candidate(2))
    assert candidate(-1) == True, "Third test error: " + str(candidate(-1))
    assert candidate(64) == True, "Fourth test error: " + str(candidate(64))
    assert candidate(180) == False, "Fifth test error: " + str(candidate(180))
    assert candidate(1000) == True, "Sixth test error: " + str(candidate(1000))

    # Check some edge cases that are easy to work out by hand.
    assert candidate(0) == True, "1st edge test error: " + str(candidate(0))
    assert candidate(1729) == False, "2nd edge test error: " + str(candidate(1728))


Prompt:
def iscube(a):
    '''
    Write a function that takes an integer a and returns True
    if this ingeger is a cube of some integer number.
    Note: you may assume the input is always valid.
    Examples:
    iscube(1) ==> True
    iscube(2) ==> False
    iscube(-1) ==> True
    iscube(64) ==> True
    iscube(0) ==> True
    iscube(180) ==> False
    '''
    a = abs(a)
    return int(round(a *

def check(candidate):

    # Check some simple cases
    assert candidate(1) == True, "First test error: " + str(candidate(1))
    assert candidate(2) == False, "Second test error: " + str(candidate(2))
    assert candidate(-1) == True, "Third test error: " + str(candidate(-1))
    assert candidate(64) == True, "Fourth test error: " + str(candidate(64))
    assert candidate(180) == False, "Fifth test error: " + str(candidate(180))
    assert candidate(1000) == True, "Sixth test error: " + str(candidate(1000))

    # Check some edge cases that are easy to work out by hand.
    assert candidate(0) == True, "1st edge test error: " + str(candidate(0))
    assert candidate(1729) == False, "2nd edge test error: " + str(candidate(1728))


Prompt:
def iscube(a):
    '''
    Write a function that takes an integer a and returns True
    if this ingeger is a cube of some integer number.
    Note: you may assume the input is always valid.
    Examples:
    iscube(1) ==> True
    iscube(2) ==> False
    iscube(-1) ==> True
    iscube(64) ==> True
    iscube(0) ==> True
    iscube(180) ==> False
    '''
    a = abs(a)
    return int(r

def check(candidate):

    # Check some simple cases
    assert candidate(1) == True, "First test error: " + str(candidate(1))
    assert candidate(2) == False, "Second test error: " + str(candidate(2))
    assert candidate(-1) == True, "Third test error: " + str(candidate(-1))
    assert candidate(64) == True, "Fourth test error: " + str(candidate(64))
    assert candidate(180) == False, "Fifth test error: " + str(candidate(180))
    assert candidate(1000) == True, "Sixth test error: " + str(candidate(1000))

    # Check some edge cases that are easy to work out by hand.
    assert candidate(0) == True, "1st edge test error: " + str(candidate(0))
    assert candidate(1729) == False, "2nd edge test error: " + str(candidate(1728))


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    primes = ('2', '3', '5', '7', 'B', 'D')
    total = 0
    for i in range(0, len(num)):

imes:
            total += 1
    return total

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    primes = ('2', '3', '5', '7', 'B', 'D')
    total =

i in range(0, len(num)):
        if num[i] in primes:
            total += 1
    return total

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    primes = ('2', '3', '5', '7', 'B',

  if num[i] in primes:
            total += 1
    return total

'D')
    total = 0
    for i in range(0, len(num)):

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    primes = ('2', '3', '5', '7', 'B',

        if num[i] in primes:
            total += 1
    return total

'D')
    total = 0
    for i in range(0, len(num)):

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    p

, 'B', 'D')
    total = 0
    for i in range(0, len(num)):
        if num[i] in primes:
            total += 1
    return total

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    primes = ('2', '3', '5', '7', 'B', 'D')
    total = 0
    for i in range(0,

 len(num)):
        if num[i] in primes:
            total += 1

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    primes = ('2', '3', '5', '7', 'B', 'D')
    total = 0
    for i in range(0, len(num)):

   if num[i] in primes:
            total += 1
    return total

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    primes = ('2', '3', '5', '7', 'B', 'D')
    total = 0

    for i in range(0, len(num)):
        if num[i] in primes:
            total += 1
    return total

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    primes =

 total = 0
    for i in range(0, len(num)):
        if num[i] in primes:
            total += 1
    return total

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def hex_key(num):
    """You have been tasked to write a function that receives
    a hexadecimal number as a string and counts the number of hexadecimal
    digits that are primes (prime number, or a prime, is a natural number
    greater than 1 that is not a product of two smaller natural numbers).
    Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
    Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
    So you have to determine a number of the following digits: 2, 3, 5, 7,
    B (=decimal 11), D (=decimal 13).
    Note: you may assume the input is always correct or empty string,
    and symbols A,B,C,D,E,F are always uppercase.
    Examples:
    For num = "AB" the output should be 1.
    For num = "1077E" the output should be 2.
    For num = "ABED1A33" the output should be 4.
    For num = "123456789ABCDEF0" the output should be 6.
    For num = "2020" the output should be 2.
    """
    primes = ('2', '3', '5', '7', 'B', 'D')

i] in primes:
            total += 1
    return total

    total = 0
    for i in range(0, len(num)):
        if num[

def check(candidate):

    # Check some simple cases
    assert candidate("AB") == 1, "First test error: " + str(candidate("AB"))
    assert candidate("1077E") == 2, "Second test error: " + str(candidate("1077E"))
    assert candidate("ABED1A33") == 4, "Third test error: " + str(candidate("ABED1A33"))
    assert candidate("2020") == 2, "Fourth test error: " + str(candidate("2020"))
    assert candidate("123456789ABCDEF0") == 6, "Fifth test error: " + str(candidate("123456789ABCDEF0"))
    assert candidate("112233445566778899AABBCCDDEEFF00") == 12, "Sixth test error: " + str(candidate("112233445566778899AABBCCDDEEFF00"))

    # Check some edge cases that are easy to work out by hand.
    assert candidate([]) == 0


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """
    return "db" + bin(de

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """
    return "db" + bin(deci

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """
    re

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """
    return "db" + bin(

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """
    retur

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """
    return "db" + bin(decimal)[

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """
    return "db" + bin(decimal

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """
    return "db" +

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def decimal_to_binary(decimal):
    """You will be given a number in decimal form and your task is to convert it to
    binary format. The function should return a string, with each character representing a binary
    number. Each character in the string will be '0' or '1'.

    There will be an extra couple of characters 'db' at the beginning and at the end of the string.
    The extra characters are there to help with the format.

    Examples:
    decimal_to_binary(15)   # returns "db1111db"
    decimal_to_binary(32)   # returns "db100000db"
    """

def check(candidate):

    # Check some simple cases
    assert candidate(0) == "db0db"
    assert candidate(32) == "db100000db"
    assert candidate(103) == "db1100111db"
    assert candidate(15) == "db1111db", "This prints if this assert fails 1 (good for debugging!)"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(

      if s[i] == s[i+1] or s[i+1] == s[i+2] or s[i] == s[i+2]:
        return False
    return True

s) < 3:
      return False

    for i in range(len(s) - 2):

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(s

    for i in range(len(s) - 2):

      if s[i] == s[i+1] or s[i+1] == s[i+2] or s[i] == s[i+2]:
        return False
    return True

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(s) < 3:
      return False

    fo

r i in range(len(s) - 2):

      if s[i] == s[i+1] or s[i+1] == s[i+2] or s[i] == s[i+2]:
        retur

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(s) <

== s[i+2] or s[i] == s[i+2]:
        return False
    return True

3:
      return False

    for i in range(len(s) - 2):

      if s[i] == s[i+1] or s[i+1]

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(s) < 3:
      return False

    for i in range(len(s) - 2):

      if s[i] == s[

r s[i+1] == s[i+2] or s[i] == s[i+2]:
        return False
    return True

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(s) < 3:
      return False

    for i in range(len(s) - 2):

      if

+1] == s[i+2] or s[i] == s[i+2]:
        return False
    return True

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(s) < 3:
      return False

    for i in range(len(s) - 2)

:

      if s[i] == s[i+1] or s[i+1] == s[i+2] or s[i] == s[i+2]:
        return False

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(s) < 3:
      return False

    for i in range(len(s) - 2):

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(s) < 3:
      return False

    for i in range(len(

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def is_happy(s):
    """You are given a string s.
    Your task is to check if the string is happy or not.
    A string is happy if its length is at least 3 and every 3 consecutive letters are distinct
    For example:
    is_happy(a) => False
    is_happy(aa) => False
    is_happy(abcd) => True
    is_happy(aabb) => False
    is_happy(adb) => True
    is_happy(xyy) => False
    """
    if len(s) < 3:
      return False

    for i in range(l

      if s[i] == s[i+1] or s[i+1] == s[i+2] or s[i] == s[i+2]:
        return False
    return True

def check(candidate):

    # Check some simple cases
    assert candidate("a") == False , "a"
    assert candidate("aa") == False , "aa"
    assert candidate("abcd") == True , "abcd"
    assert candidate("aabb") == False , "aabb"
    assert candidate("adb") == True , "adb"
    assert candidate("xyy") == False , "xyy"
    assert candidate("iopaxpoi") == True , "iopaxpoi"
    assert candidate("iopaxioi") == False , "iopaxioi"


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_grade = []
    for g

append("A-")
        elif gpa > 3.0:
            letter_grade.append("B+")
        elif gpa > 2.7:
            letter_grade.append("B")
        elif gpa > 2.3:
            letter_grade.append("B-")
        elif gpa > 2.0:
            letter_grade.append("C+")
        elif gpa > 1.7:
            letter_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            letter_grade.append("D")
        elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

pa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")
        elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa > 3.3:
            letter_grade.

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_grade = []
    for gpa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")
        elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa > 3.3:

grade.append("B+")
        elif gpa > 2.7:
            letter_grade.append("B")
        elif gpa > 2.3:
            letter_grade.append("B-")
        elif gpa > 2.0:
            letter_grade.append("C+")
        elif gpa > 1.7:
            letter_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            letter_grade.append("D")
        elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

            letter_grade.append("A-")
        elif gpa > 3.0:
            letter_

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_grade = []
    for gpa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")
        elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa > 3.3:
            letter_grade.append("A-")
        elif gpa > 3.0:
            letter_grade.append("B+")
        elif gpa > 2.7:
            letter_grade.append("B")
        elif gpa > 2.3:
            letter_grade.append("B-")
        elif gpa > 2.0:
            letter_grade.append("C+")

      elif gpa > 1.7:
            letter_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            letter_grade.append("D")
        elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_grade = []
    for gpa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")
        elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa > 3.3:
            letter_grade.append("A-")

         letter_grade.append("B")
        elif gpa > 2.3:
            letter_grade.append("B-")
        elif gpa > 2.0:
            letter_grade.append("C+")
        elif gpa > 1.7:
            letter_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            letter_grade.append("D")
        elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

 elif gpa > 3.0:
            letter_grade.append("B+")
        elif gpa > 2.7:

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_grade = []
    for gpa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")
        elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa >

     elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

3.3:
            letter_grade.append("A-")
        elif gpa > 3.0:
            letter_grade.append("B+")
        elif gpa > 2.7:
            letter_grade.append("B")
        elif gpa > 2.3:
            letter_grade.append("B-")
        elif gpa > 2.0:
            letter_grade.append("C+")
        elif gpa > 1.7:
            letter_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            letter_grade.append("D")

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_

_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            letter_grade.append("D")
        elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

grade = []
    for gpa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")
        elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa > 3.3:
            letter_grade.append("A-")
        elif gpa > 3.0:
            letter_grade.append("B+")
        elif gpa > 2.7:
            letter_grade.append("B")
        elif gpa > 2.3:
            letter_grade.append("B-")
        elif gpa > 2.0:
            letter_grade.append("C+")
        elif gpa > 1.7:
            letter

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_grade = []
    for gpa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")
        elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa > 3.3:
            letter_grade.append("A-")
        elif gpa > 3.0:
            letter_grade.append("B+")
        elif gpa > 2.7:
            letter_grade.append("B")
        elif gpa > 2.3:
            letter_

tter_grade.append("D")
        elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

grade.append("B-")
        elif gpa > 2.0:
            letter_grade.append("C+")
        elif gpa > 1.7:
            letter_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            le

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_grade

d("C+")
        elif gpa > 1.7:
            letter_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            letter_grade.append("D")
        elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

 = []
    for gpa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")
        elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa > 3.3:
            letter_grade.append("A-")
        elif gpa > 3.0:
            letter_grade.append("B+")
        elif gpa > 2.7:
            letter_grade.append("B")
        elif gpa > 2.3:
            letter_grade.append("B-")
        elif gpa > 2.0:
            letter_grade.appen

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_grade = []
    for gpa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")

etter_grade.append("A-")
        elif gpa > 3.0:
            letter_grade.append("B+")
        elif gpa > 2.7:
            letter_grade.append("B")
        elif gpa > 2.3:
            letter_grade.append("B-")
        elif gpa > 2.0:
            letter_grade.append("C+")
        elif gpa > 1.7:
            letter_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            letter_grade.append("D")
        elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa > 3.3:
            l

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def numerical_letter_grade(grades):
    """It is the last week of the semester and the teacher has to give the grades
    to students. The teacher has been making her own algorithm for grading.
    The only problem is, she has lost the code she used for grading.
    She has given you a list of GPAs for some students and you have to write
    a function that can output a list of letter grades using the following table:
             GPA       |    Letter grade
              4.0                A+
            > 3.7                A
            > 3.3                A-
            > 3.0                B+
            > 2.7                B
            > 2.3                B-
            > 2.0                C+
            > 1.7                C
            > 1.3                C-
            > 1.0                D+
            > 0.7                D
            > 0.0                D-
              0.0                E

    Example:
    grade_equation([4.0, 3, 1.7, 2, 3.5]) ==> ['A+', 'B', 'C-', 'C', 'A-']
    """

    letter_grade = []
    for gpa in grades:
        if gpa == 4.0:
            letter_grade.append("A+")
        elif gpa > 3.7:
            letter_grade.append("A")
        elif gpa > 3.3:
            letter_grade.append("A-")
        elif gpa > 3.0:

lif gpa > 2.7:
            letter_grade.append("B")
        elif gpa > 2.3:
            letter_grade.append("B-")
        elif gpa > 2.0:
            letter_grade.append("C+")
        elif gpa > 1.7:
            letter_grade.append("C")
        elif gpa > 1.3:
            letter_grade.append("C-")
        elif gpa > 1.0:
            letter_grade.append("D+")
        elif gpa > 0.7:
            letter_grade.append("D")
        elif gpa > 0.0:
            letter_grade.append("D-")
        else:
            letter_grade.append("E")
    return letter_grade

def check(candidate):

    # Check some simple cases
    assert candidate([4.0, 3, 1.7, 2, 3.5]) == ['A+', 'B', 'C-', 'C', 'A-']
    assert candidate([1.2]) == ['D+']
    assert candidate([0.5]) == ['D-']
    assert candidate([0.0]) == ['E']
    assert candidate([1, 0.3, 1.5, 2.8, 3.3]) == ['D', 'D-', 'C-', 'B', 'B+']
    assert candidate([0, 0.7]) == ['E', 'D-']

    # Check some edge cases that are easy to work out by hand.
    assert True


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """
    l = len(string)
    if l

 == 0 or l == 1:
        return False
    for i in range(2, l):
        if l % i == 0:

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """
    l

 == 0 or l == 1:
        return False
    for i in range(2, l):
        if l % i == 0:
            return False
    return True

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """
    l = len(string)
    if l ==

0 or l == 1:
        return False
    for i in range(2, l):
        if l % i == 0:
            return Fals

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """
    l = len(string)
    if l == 0 or l == 1:
        return False
    for i in range(2, l):
        if l % i =

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """
    l = len(string)
    if l == 0 or l == 1:
        retu

 range(2, l):
        if l % i == 0:
            return False
    return True

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """
    l = len(string)
    i

 == 0 or l == 1:
        return False
    for i in range(2, l):
        if l % i == 0:
            return False
    return True

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """

  if l % i == 0:
            return False
    return True

 l = len(string)
    if l == 0 or l == 1:
        return False
    for i in range(2, l):

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """
    l = len(string)
    if l == 0 or l

 == 1:
        return False
    for i in range(2, l):
        if l % i == 0:
            return False

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """
    l = len(st

ring)
    if l == 0 or l == 1:
        return False
    for i in range(2, l):
        if l % i == 0:

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def prime_length(string):
    """Write a function that takes a string and returns True if the string
    length is a prime number or False otherwise
    Examples
    prime_length('Hello') == True
    prime_length('abcdcba') == True
    prime_length('kittens') == True
    prime_length('orange') == False
    """
    l = len(string)
    if l

 == 0 or l == 1:
        return False
    for i in range(2, l):
        if l % i == 0:
            return False
    return True

def check(candidate):

    # Check some simple cases
    assert candidate('Hello') == True
    assert candidate('abcdcba') == True
    assert candidate('kittens') == True
    assert candidate('orange') == False
    assert candidate('wow') == True
    assert candidate('world') == True
    assert candidate('MadaM') == True
    assert candidate('Wow') == True
    assert candidate('') == False
    assert candidate('HI') == True
    assert candidate('go') == True
    assert candidate('gogo') == False
    assert candidate('aaaaaaaaaaaaaaa') == False

    # Check some edge cases that are easy to work out by hand.
    assert candidate('Madam') == True
    assert candidate('M') == False
    assert candidate('0') == False


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """
    if n =

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """
    if n == 1

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """
    if n == 1: retu

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """
    if n =

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """
    if n == 1: return 1
    return 18 * (10

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """
    if n == 1: return 1

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """
    if n == 1: retur

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def starts_one_ends(n):
    """
    Given a positive integer n, return the count of the numbers of n-digit
    positive integers that start or end with 1.
    """
    if n == 1:

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1) == 1
    assert candidate(2) == 18
    assert candidate(3) == 180
    assert candidate(4) == 1800
    assert candidate(5) == 18000

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """
    r

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """

return bin(sum(int(i) for i in str(N)))[2:]

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """
    return bin

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """
    return bin(sum(int(i) for i i

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """
    return bin(sum(int(i

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """
    return

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """
    return bin

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """
    return bin(

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary.

    Example
        For N = 1000, the sum of digits will be 1 the output should be "1".
        For N = 150, the sum of digits will be 6 the output should be "110".
        For N = 147, the sum of digits will be 12 the output should be "1100".

    Variables:
        @N integer
             Constraints: 0 ≤ N ≤ 10000.
    Output:
         a string of binary number
    """
    ret

def check(candidate):

    # Check some simple cases
    assert True, "This prints if this assert fails 1 (good for debugging!)"
    assert candidate(1000) == "1", "Error"
    assert candidate(150) == "110", "Error"
    assert candidate(147) == "1100", "Error"

    # Check some edge cases that are easy to work out by hand.
    assert True, "This prints if this assert fails 2 (also good for debugging!)"
    assert candidate(333) == "1001", "Error"
    assert candidate(963) == "10010", "Error"


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """
    return sum([lst[i] for i in range(1, len(

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """
    return sum([

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """
    ret

i in range(1, len(lst), 2) if lst[i]%2 == 0])

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """
    return sum([lst[i] for i in range(1, len(

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """

return sum([lst[i] for i in range(1, len(lst), 2) if lst[i]%2 == 0

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """
    return sum([lst[i] for i in range(1, le

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """
    return sum([lst[i]

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """

return sum([lst[i] for i in range(1, len(lst), 2) if ls

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """
    return sum([lst

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.


Prompt:
def add(lst):
    """Given a non-empty list of integers lst. add the even elements that are at odd indices..

    Examples:
        add([4, 2, 6, 7]) ==> 2
    """
    return sum

or i in range(1, len(lst), 2) if lst[i]%2 == 0])

def check(candidate):

    # Check some simple cases
    assert candidate([4, 88]) == 88
    assert candidate([4, 5, 6, 7, 2, 122]) == 122
    assert candidate([4, 0, 6, 7]) == 0
    assert candidate([4, 4, 6, 8]) == 12

    # Check some edge cases that are easy to work out by hand.