message stringlengths 2 59.7k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 37 108k | cluster float64 20 20 | __index_level_0__ int64 74 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a positive integer n, written without leading zeroes (for example, the number 04 is incorrect).
In one operation you can delete any digit of the given integer so that the result ... | instruction | 0 | 66,206 | 20 | 132,412 |
No | output | 1 | 66,206 | 20 | 132,413 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a positive integer n, written without leading zeroes (for example, the number 04 is incorrect).
In one operation you can delete any digit of the given integer so that the result ... | instruction | 0 | 66,207 | 20 | 132,414 |
No | output | 1 | 66,207 | 20 | 132,415 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a positive integer n, written without leading zeroes (for example, the number 04 is incorrect).
In one operation you can delete any digit of the given integer so that the result ... | instruction | 0 | 66,208 | 20 | 132,416 |
No | output | 1 | 66,208 | 20 | 132,417 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a positive integer n, written without leading zeroes (for example, the number 04 is incorrect).
In one operation you can delete any digit of the given integer so that the result ... | instruction | 0 | 66,209 | 20 | 132,418 |
No | output | 1 | 66,209 | 20 | 132,419 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by number y?".
The game is played by the following ru... | instruction | 0 | 66,804 | 20 | 133,608 |
Tags: math, number theory
Correct Solution:
```
def crivo(numero):
numeros = [True] * (numero + 1)
raiz = int(pow(numero, 1/2))
for j in (i for i in range(2, raiz + 1) if numeros[i]):
for k in range(j * j, numero + 1, j):
numeros[k] = False
return [i for i in range(2, numero +... | output | 1 | 66,804 | 20 | 133,609 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by number y?".
The game is played by the following ru... | instruction | 0 | 66,805 | 20 | 133,610 |
Tags: math, number theory
Correct Solution:
```
primes = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367... | output | 1 | 66,805 | 20 | 133,611 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by number y?".
The game is played by the following ru... | instruction | 0 | 66,806 | 20 | 133,612 |
Tags: math, number theory
Correct Solution:
```
n = int(input())
a = list(range(n+1))
a[1] = 0
lst = []
i = 2
while i <= n:
if a[i] != 0:
lst.append(a[i])
for j in range(i, n+1, i):
a[j] = 0
i += 1
for i in range(len(lst)):
x = lst[i]
m = x
while m*x <= n:
lst.a... | output | 1 | 66,806 | 20 | 133,613 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by numb... | instruction | 0 | 66,808 | 20 | 133,616 |
Yes | output | 1 | 66,808 | 20 | 133,617 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by numb... | instruction | 0 | 66,809 | 20 | 133,618 |
Yes | output | 1 | 66,809 | 20 | 133,619 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by numb... | instruction | 0 | 66,811 | 20 | 133,622 |
Yes | output | 1 | 66,811 | 20 | 133,623 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by numb... | instruction | 0 | 66,812 | 20 | 133,624 |
No | output | 1 | 66,812 | 20 | 133,625 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by numb... | instruction | 0 | 66,813 | 20 | 133,626 |
No | output | 1 | 66,813 | 20 | 133,627 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by numb... | instruction | 0 | 66,814 | 20 | 133,628 |
No | output | 1 | 66,814 | 20 | 133,629 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tries to guess the number.
Petya can ask questions like: "Is the unknown number divisible by numb... | instruction | 0 | 66,815 | 20 | 133,630 |
No | output | 1 | 66,815 | 20 | 133,631 |
Provide a correct Python 3 solution for this coding contest problem.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rules below.
A B
C
In the sequence of numbers, C is the ... | instruction | 0 | 67,140 | 20 | 134,280 |
"Correct Solution:
```
while True:
try:
nums = list(map(int, list(input())))
except:
break
while len(nums) > 1:
tmp = []
for i in range(len(nums)-1):
tmp.append(int(str(nums[i] + nums[i+1])[-1]))
nums = [] + tmp
print(nums[0])
``` | output | 1 | 67,140 | 20 | 134,281 |
Provide a correct Python 3 solution for this coding contest problem.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rules below.
A B
C
In the sequence of numbers, C is the ... | instruction | 0 | 67,141 | 20 | 134,282 |
"Correct Solution:
```
# addtion_resultに計算結果を一時保存して1ループ終了ごとにlineをaddtion_resultに置き換えて次のループに行くことでfor文で実装可能になる
while True:
try:
line = [int(x) for x in list(input())]
except EOFError:
break
addition_result =[]
while len(line) > 1:
for i in range(len(line)-1):
additio... | output | 1 | 67,141 | 20 | 134,283 |
Provide a correct Python 3 solution for this coding contest problem.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rules below.
A B
C
In the sequence of numbers, C is the ... | instruction | 0 | 67,142 | 20 | 134,284 |
"Correct Solution:
```
def calc(inp):
if len(inp) == 1:
return inp
out = ""
for i in range(len(inp) - 1):
out = out + str(int(inp[i]) + int(inp[i + 1]))[-1]
return calc(out)
while True:
try:
s = input()
print(calc(s))
except:
break
``` | output | 1 | 67,142 | 20 | 134,285 |
Provide a correct Python 3 solution for this coding contest problem.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rules below.
A B
C
In the sequence of numbers, C is the ... | instruction | 0 | 67,143 | 20 | 134,286 |
"Correct Solution:
```
import sys
for e in sys.stdin:
e=list(map(int,e.strip()))
while len(e)>1:e=[(e[i]+e[i+1])%10 for i in range(len(e)-1)]
print(*e)
``` | output | 1 | 67,143 | 20 | 134,287 |
Provide a correct Python 3 solution for this coding contest problem.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rules below.
A B
C
In the sequence of numbers, C is the ... | instruction | 0 | 67,144 | 20 | 134,288 |
"Correct Solution:
```
import sys
for l in sys.stdin:print(sum(int(a)*b for a,b in zip(l,[1,9,6,4,6,6,4,6,9,1]))%10)
``` | output | 1 | 67,144 | 20 | 134,289 |
Provide a correct Python 3 solution for this coding contest problem.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rules below.
A B
C
In the sequence of numbers, C is the ... | instruction | 0 | 67,145 | 20 | 134,290 |
"Correct Solution:
```
import sys
for line in sys.stdin.readlines():
l = [int(i) for i in line.replace('\n','')]
while len(l) >1:
m = []
for i in range(len(l)-1):
m.append((l[i]+l[i+1])%10)
l = list(m)
print(l[0])
``` | output | 1 | 67,145 | 20 | 134,291 |
Provide a correct Python 3 solution for this coding contest problem.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rules below.
A B
C
In the sequence of numbers, C is the ... | instruction | 0 | 67,146 | 20 | 134,292 |
"Correct Solution:
```
def get_input():
while True:
try:
yield ''.join(input())
except EOFError:
break
N = list(get_input())
for l in range(len(N)):
S = N[l]
table = [[0 for i in range(10)] for j in range(10)]
for i in range(len(S)):
table[0][i] = int(S[i... | output | 1 | 67,146 | 20 | 134,293 |
Provide a correct Python 3 solution for this coding contest problem.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rules below.
A B
C
In the sequence of numbers, C is the ... | instruction | 0 | 67,147 | 20 | 134,294 |
"Correct Solution:
```
s = []
while True:
try:
s.append(str(input()))
except EOFError:
break
def func(x):
array = []
if len(x) == 1:
return x[0]
for i in range(len(x)-1):
array.append((x[i] + x[i+1]) % 10)
return func(array)
for i in range(len(s)):
arr = lis... | output | 1 | 67,147 | 20 | 134,295 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rule... | instruction | 0 | 67,148 | 20 | 134,296 |
Yes | output | 1 | 67,148 | 20 | 134,297 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rule... | instruction | 0 | 67,149 | 20 | 134,298 |
Yes | output | 1 | 67,149 | 20 | 134,299 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rule... | instruction | 0 | 67,150 | 20 | 134,300 |
Yes | output | 1 | 67,150 | 20 | 134,301 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rule... | instruction | 0 | 67,151 | 20 | 134,302 |
Yes | output | 1 | 67,151 | 20 | 134,303 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rule... | instruction | 0 | 67,152 | 20 | 134,304 |
No | output | 1 | 67,152 | 20 | 134,305 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rule... | instruction | 0 | 67,153 | 20 | 134,306 |
No | output | 1 | 67,153 | 20 | 134,307 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rule... | instruction | 0 | 67,154 | 20 | 134,308 |
No | output | 1 | 67,154 | 20 | 134,309 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider creating the following number pattern.
4 8 2 3 1 0 8 3 7 6
2 0 5 4 1 8 1 0 3
2 5 9 5 9 9 1 3
7 4 4 4 8 0 4
1 8 8 2 8 4
9 6 0 0 2
5 6 0 2
1 6 2
7 8
Five
This pattern follows the rule... | instruction | 0 | 67,155 | 20 | 134,310 |
No | output | 1 | 67,155 | 20 | 134,311 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For example, performing "a += b" when a = 2, b = 3 chan... | instruction | 0 | 68,294 | 20 | 136,588 |
Tags: brute force, greedy, implementation, math
Correct Solution:
```
t = int(input())
for _ in range(t):
a, b, n = (int(var) for var in input().split())
maxi, mini = max(a, b), min(a, b)
if a > n or b > n :
print(0)
else:
import math
steps = 0
while not(maxi > n or mini > n):
maxi, mini = max(maxi, mi... | output | 1 | 68,294 | 20 | 136,589 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For example, performing "a += b" when a = 2, b = 3 chan... | instruction | 0 | 68,295 | 20 | 136,590 |
Tags: brute force, greedy, implementation, math
Correct Solution:
```
t = int(input())
cases = []
for i in range(t):
cases.append(list(map(int, input().strip().split())))
def solve(case):
steps =0
a, b, n = case
while a <= n and b <= n:
steps+=1
s = a+b
if a < b:
a =... | output | 1 | 68,295 | 20 | 136,591 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For example, performing "a += b" when a = 2, b = 3 chan... | instruction | 0 | 68,296 | 20 | 136,592 |
Tags: brute force, greedy, implementation, math
Correct Solution:
```
t=int(input())
for _ in range(t):
a,b,n=map(int,input().split())
steps=0
if a<b:
a,b=b,a
while max(a,b)<=n:
if b<a:
b+=a
else:
a+=b
steps+=1
print(steps)
``` | output | 1 | 68,296 | 20 | 136,593 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For example, performing "a += b" when a = 2, b = 3 chan... | instruction | 0 | 68,297 | 20 | 136,594 |
Tags: brute force, greedy, implementation, math
Correct Solution:
```
# cook your dish here
# cook your dish here
t = int(input())
while t:
a,b,n = map(int,input().split())
count = 0
while max(a,b)<=n:
if a<b:
a = a+b
else:
b= b+a
count =count+1
... | output | 1 | 68,297 | 20 | 136,595 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For example, performing "a += b" when a = 2, b = 3 chan... | instruction | 0 | 68,298 | 20 | 136,596 |
Tags: brute force, greedy, implementation, math
Correct Solution:
```
t = int(input())
while t:
t-=1
a,b,n = map(int, input().split())
ans = 0
if a>b:
a,b=b,a
if max(a,b) > n:
print(0)
continue
curr = 0
while curr <= n:
curr = a+b
ans+=1
a=b
b=curr
print(ans)
``` | output | 1 | 68,298 | 20 | 136,597 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For example, performing "a += b" when a = 2, b = 3 chan... | instruction | 0 | 68,299 | 20 | 136,598 |
Tags: brute force, greedy, implementation, math
Correct Solution:
```
for s in[*open(0)][1:]:
a,b,n=map(int,s.split());i=0
while b<=n:a,b=max(a,b),a+b;i+=1
print(i)
``` | output | 1 | 68,299 | 20 | 136,599 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For example, performing "a += b" when a = 2, b = 3 chan... | instruction | 0 | 68,300 | 20 | 136,600 |
Tags: brute force, greedy, implementation, math
Correct Solution:
```
tc=int(input())
for _ in range(tc):
a,b,n=map(int,(input().split()))
# a=[int(x) for x in input().split()]
# a.sort()
ops=0
while a <= n and b <= n:
if a>b:
b+=a
else:
a+=b
... | output | 1 | 68,300 | 20 | 136,601 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For example, performing "a += b" when a = 2, b = 3 chan... | instruction | 0 | 68,301 | 20 | 136,602 |
Tags: brute force, greedy, implementation, math
Correct Solution:
```
# https://codeforces.com/contest/1368/problem/0
import sys
reader = (s.rstrip() for s in sys.stdin)
input = reader.__next__
# do magic here
t = int(input())
for _ in range(t):
a, b, n = map(int, input().split())
a, b = min(a, b), max(a, b)
... | output | 1 | 68,301 | 20 | 136,603 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For exam... | instruction | 0 | 68,303 | 20 | 136,606 |
Yes | output | 1 | 68,303 | 20 | 136,607 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For exam... | instruction | 0 | 68,304 | 20 | 136,608 |
Yes | output | 1 | 68,304 | 20 | 136,609 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For exam... | instruction | 0 | 68,305 | 20 | 136,610 |
Yes | output | 1 | 68,305 | 20 | 136,611 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For exam... | instruction | 0 | 68,306 | 20 | 136,612 |
No | output | 1 | 68,306 | 20 | 136,613 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For exam... | instruction | 0 | 68,307 | 20 | 136,614 |
No | output | 1 | 68,307 | 20 | 136,615 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Leo has developed a new programming language C+=. In C+=, integer variables can only be changed with a "+=" operation that adds the right-hand side value to the left-hand side variable. For exam... | instruction | 0 | 68,309 | 20 | 136,618 |
No | output | 1 | 68,309 | 20 | 136,619 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a positive integer n let's define a function f:
f(n) = - 1 + 2 - 3 + .. + ( - 1)nn
Your task is to calculate f(n) for a given integer n.
Input
The single line contains the positive integer n (1 ≤ n ≤ 1015).
Output
Print f(n) in a s... | instruction | 0 | 68,511 | 20 | 137,022 |
Tags: implementation, math
Correct Solution:
```
n=int(input())
if n%2==0:
res=n//2
else:
res=(n-1)//2-n
print(res)
``` | output | 1 | 68,511 | 20 | 137,023 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a positive integer n let's define a function f:
f(n) = - 1 + 2 - 3 + .. + ( - 1)nn
Your task is to calculate f(n) for a given integer n.
Input
The single line contains the positive integer n (1 ≤ n ≤ 1015).
Output
Print f(n) in a s... | instruction | 0 | 68,512 | 20 | 137,024 |
Tags: implementation, math
Correct Solution:
```
n1=int(input())
e=(n1//2)
if n1%2:
o=(n1//2)+1
else:
o=n1//2
print((e*(e+1))-(o**2))
# -1+2-3+4.....((-1)**n)*n
# sum of n even numbers is 'n*(n+1)'
# sum of n odd numbers is 'n^2'
``` | output | 1 | 68,512 | 20 | 137,025 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a positive integer n let's define a function f:
f(n) = - 1 + 2 - 3 + .. + ( - 1)nn
Your task is to calculate f(n) for a given integer n.
Input
The single line contains the positive integer n (1 ≤ n ≤ 1015).
Output
Print f(n) in a s... | instruction | 0 | 68,513 | 20 | 137,026 |
Tags: implementation, math
Correct Solution:
```
s=int(input())
p=s//2
if(s%2!=0):
a=(p+1)*(p+1)
b=p*(p+1)
print(-a+b)
else:
a=(p)*(p)
b=p*(p+1)
print(b-a)
``` | output | 1 | 68,513 | 20 | 137,027 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a positive integer n let's define a function f:
f(n) = - 1 + 2 - 3 + .. + ( - 1)nn
Your task is to calculate f(n) for a given integer n.
Input
The single line contains the positive integer n (1 ≤ n ≤ 1015).
Output
Print f(n) in a s... | instruction | 0 | 68,514 | 20 | 137,028 |
Tags: implementation, math
Correct Solution:
```
def f(n) :
if n == 0 :
return 0
elif n == 1 :
return -1
else :
if n % 2 == 0 :
return n//2
elif n % 2 == 1 :
return f(1) * (f(n-1) + 1)
if __name__ == '__main__':
x = int(input())
print(f(x))
``` | output | 1 | 68,514 | 20 | 137,029 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a positive integer n let's define a function f:
f(n) = - 1 + 2 - 3 + .. + ( - 1)nn
Your task is to calculate f(n) for a given integer n.
Input
The single line contains the positive integer n (1 ≤ n ≤ 1015).
Output
Print f(n) in a s... | instruction | 0 | 68,515 | 20 | 137,030 |
Tags: implementation, math
Correct Solution:
```
n=int(input())
k=n
if(n%2==0):
k=k//2
even=k*(k+1)
odd=k**2
print(even-odd)
else:
k=k//2
even=k*(k+1)
odd=k**2
print(even-odd-n)
``` | output | 1 | 68,515 | 20 | 137,031 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a positive integer n let's define a function f:
f(n) = - 1 + 2 - 3 + .. + ( - 1)nn
Your task is to calculate f(n) for a given integer n.
Input
The single line contains the positive integer n (1 ≤ n ≤ 1015).
Output
Print f(n) in a s... | instruction | 0 | 68,516 | 20 | 137,032 |
Tags: implementation, math
Correct Solution:
```
a=int(input())
print(round((a/2)+0.4)*(-1)**(a%2))
``` | output | 1 | 68,516 | 20 | 137,033 |
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