qyliang/CodeNanoFix huggingface dataset:
Buggy code:
import math
import string


def readints():
    return list(map(int, input().split()))


def nCr(n, r):
    return math.factorial(n)//(math.factorial(n-r)*math.factorial(r))


def has_duplicates2(seq):
    seen = []
    for item in seq:
        if not(item in seen):
            seen.append(item)
    return len(seq) != len(seen)


def divisor(n):
    divisor = []
    for i in range(1, n+1):
        if n % i == 0:
            divisor.append(i)
    return divisor


# coordinates
dx = [-1, -1, -1, 0, 0, 1, 1, 1]
dy = [-1, 0, 1, -1, 1, -1, 0, 1]

N = int(input())
a = readints()
# print(a)
aa = sorted(a, reverse=True)
print(aa)
x = 0
for i in range(len(a)):
    if i % 2 == 0:
        x += aa[i]
    else:
        x -= aa[i]
print(x)


Fixed code:
import math
import string


def readints():
    return list(map(int, input().split()))


def nCr(n, r):
    return math.factorial(n)//(math.factorial(n-r)*math.factorial(r))


def has_duplicates2(seq):
    seen = []
    for item in seq:
        if not(item in seen):
            seen.append(item)
    return len(seq) != len(seen)


def divisor(n):
    divisor = []
    for i in range(1, n+1):
        if n % i == 0:
            divisor.append(i)
    return divisor


# coordinates
dx = [-1, -1, -1, 0, 0, 1, 1, 1]
dy = [-1, 0, 1, -1, 1, -1, 0, 1]

N = int(input())
a = readints()
# print(a)
aa = sorted(a, reverse=True)
# print(aa)
x = 0
for i in range(len(a)):
    if i % 2 == 0:
        x += aa[i]
    else:
        x -= aa[i]
print(x)
Buggy code:
N = int(input())
a = list(map(int,input().split(" ")))

a.sort(reverse=True)

al = 0
bo = 0
for i in range(0,N,2):
	al += a[i]
	bo += a[i+1]

print(al-bo)


Fixed code:
N = int(input())
a = list(map(int,input().split(" ")))

a.sort(reverse=True)

al = 0
bo = 0

if N % 2 == 1:
	N -= 1
	al += a[-1]

for i in range(0,N,2):
	al += a[i]
	bo += a[i+1]

print(al-bo)
Buggy code:
N=int(input())
a=list(map(int,input().split()))
a.sort(reverse=True)
x,y=0.0
for i in range(N):
  if i%2==0:
    x+=i
  else:
    y+=i
print(x-y)

Fixed code:
N=int(input())
a=list(map(int,input().split()))
a.sort(reverse=True)
x=0
y=0
for i in range(N):
  if i%2==0:
    x+=a[i]
  else:
    y+=a[i]
print(abs(x-y))
Buggy code:
n = int(input())
list = list(map(int, input().split()))
list.sort()
list.reverse()

a = 0
b = 0

for i in list:
  if i % 2 == 0:
    a += list[i]
  else:
    b += list[i]

print(a - b)

Fixed code:
n = int(input())
list = list(map(int, input().split()))
list.sort()
list.reverse()

a = 0
b = 0

for i in range(len(list)):
  if i % 2 == 0:
    a += list[i]
  else:
    b += list[i]

print(a - b)
Buggy code:
n = int(input())
a = sorted(list(map(int,input().split())), reverse=True)
print(aum(a[::2]) - sum(a[1::2]))

Fixed code:
n = int(input())
a = sorted(list(map(int,input().split())), reverse=True)
print(sum(a[::2]) - sum(a[1::2]))
Buggy code:
N = int(input())
A = list(map(int,input().split(" ")))
# A.sort()
A = sorted(A,reverse=True)
print(A)
a_sum = 0
b_sum = 0
for i in range(len(A)):
    if i%2==0:
        a_sum+= A[i]
    else:
        b_sum += A[i]

print(a_sum-b_sum)

Fixed code:
N = int(input())
A = list(map(int,input().split(" ")))
A = sorted(A,reverse=True)
a_sum = 0
b_sum = 0
for i in range(len(A)):
    if i%2==0:
        a_sum+= A[i]
    else:
        b_sum += A[i]

print(a_sum-b_sum)
Buggy code:
n = int(input())
a_list = list(map(int, input().split()))
print(a_list)

a_list.sort(reverse = True)
alice_sum = 0
bob_sum = 0
for i in range(len(a_list)):
    if i % 2 == 0:
        alice_sum += a_list[i]
    else:
        bob_sum += a_list[i]

print(alice_sum - bob_sum)

Fixed code:
n = int(input())
a_list = list(map(int, input().split()))

a_list.sort(reverse = True)
alice_sum = 0
bob_sum = 0
for i in range(len(a_list)):
    if i % 2 == 0:
        alice_sum += a_list[i]
    else:
        bob_sum += a_list[i]

print(alice_sum - bob_sum)
Buggy code:
n=int(input())
a=list(map(int,input().split()))
a.sort(reverse=True)
Ali,Bob=0,0
for i in range(0,n-1,2):
    Ali +=a[i]
    Bob +=a[i+1]
print(Ali-Bob)

Fixed code:
n=int(input())
a=list(map(int,input().split()))
a.sort(reverse=True)
a.append(0)
Ali,Bob=0,0
for i in range(0,n,2):
    Ali +=a[i]
    Bob +=a[i+1]
print(Ali-Bob)
Buggy code:
n = int(input())
num_list = list(map(int, input().split()))

Alice = 0
Bob = 0

for i in range(n):
    current_max = max(num_list)
    if i % 2 == 0:
        Alice += current_max
    else:
        Bob += current_max
    a_list.remove(current_max)

print(Alice - Bob)


Fixed code:
n = int(input())
num_list = list(map(int, input().split()))

Alice = 0
Bob = 0

for i in range(n):
    current_max = max(num_list)
    if i % 2 == 0:
        Alice += current_max
    else:
        Bob += current_max
    num_list.remove(current_max)

print(Alice - Bob)
Buggy code:
N =int(input())
a = list(map(int, input().split()))
b = sorted(a,reverse=True)
Alice = sum(b[::2])
Bob = sum(b[1::2])
ans = Alice - Bob
print(ans)
print(b)

Fixed code:
N =int(input())
a = list(map(int, input().split()))
b = sorted(a,reverse=True)
Alice = sum(b[::2])
Bob = sum(b[1::2])
ans = Alice - Bob
print(ans)
Buggy code:

n = int(input())
card_list = list(map(int, input().split()))

alice_point = 0
bob_point = 0

def pick_card(card_list):
    # print(card_list)
    max = 0
    max_index = 0
    for i in range(card_list.__len__()):
        # print('-------', i)
        if card_list[i] > max:
            # print('@', i, ':', max, '<', card_list[i])
            max = card_list[i]
            max_index = i
    
    del card_list[max_index]

    # print('----', card_list)

    return max, card_list

def sort_card(card_list: list):
    return card_list.sort()

turn = 0
while turn < n:
    # print('--', turn)
    sorted_list = sort_card(card_list)
    if turn % 2 == 0:
        # alice_get, remain_list = pick_card(card_list)
        # alice_point += alice_get
        alice_point += sorted_list.pop()
    else:
        # bob_get, remain_list = pick_card(card_list)
        # bob_point += bob_get
        bob_point += sorted_list.pop()

    card_list = remain_list
    # print(alice_point, bob_point, card_list)

    turn += 1

print(alice_point - bob_point)

Fixed code:

n = int(input())
card_list = list(map(int, input().split()))

alice_point = 0
bob_point = 0

def pick_card(card_list):
    # print(card_list)
    max = 0
    max_index = 0
    for i in range(card_list.__len__()):
        # print('-------', i)
        if card_list[i] > max:
            # print('@', i, ':', max, '<', card_list[i])
            max = card_list[i]
            max_index = i
    
    del card_list[max_index]

    # print('----', card_list)

    return max, card_list

def sort_card(card_list: list):
    return sorted(card_list, reverse=True)

turn = 0
sorted_list = sort_card(card_list)
while turn < n:
    # print('--', turn)
    if turn % 2 == 0:
        # alice_get, remain_list = pick_card(card_list)
        # alice_point += alice_get
        alice_point += sorted_list.pop(0)
    else:
        # bob_get, remain_list = pick_card(card_list)
        # bob_point += bob_get
        bob_point += sorted_list.pop(0)

    # card_list = remain_list
    # print(alice_point, bob_point, sorted_list)

    turn += 1

print(alice_point - bob_point)
Buggy code:
N = int(input())
a = list(map(int, input().split()))
a.sort()
print(sum(a[0::2])-sum(a[1::2]))

Fixed code:
N = int(input())
a = list(map(int, input().split()))
a.sort(reverse=True)
print(sum(a[0::2])-sum(a[1::2]))
Buggy code:
n-int(input())
x=list(map(int,input().split()))
a=0
b=0
for i in range(n//2):
  a+=max(x)
  x.remove(max(x))
  b+=max(x)
  x.remove(max(x))

if n%2:
  a+=x[0]
dif=b-a
print(dif)

Fixed code:
n=int(input())
x=list(map(int,input().split()))
a=0
b=0
for i in range(n//2):
  a+=max(x)
  x.remove(max(x))
  b+=max(x)
  x.remove(max(x))

if n%2:
  a+=x[0]
dif=a-b
print(dif)
Buggy code:
N = int(input())
A = [int(i) for i in input().split()]

A_sorted = sorted(A, reverse=True)
print(A_sorted)

Alice_point = 0; Bob_point = 0

for i in range(N):
    
    if i % 2 == 0:
        print("Alice=",i)
        Alice_point += A_sorted[i]
    else:
        print("Bob=",i)
        Bob_point += A_sorted[i]
    
ans = Alice_point - Bob_point

print(ans)

Fixed code:
N = int(input())
A = [int(i) for i in input().split()]

A_sorted = sorted(A, reverse=True)

Alice_point = 0; Bob_point = 0

for i in range(N):
    
    if i % 2 == 0:
        Alice_point += A_sorted[i]
    else:
        Bob_point += A_sorted[i]
    
ans = Alice_point - Bob_point

print(ans)
Buggy code:
n = int(input())
cards = list(sorted(map(int, input()), reverse=True))

a = sum(cards[0::2])
b = sum(cards[1::2])

print(a - b)




Fixed code:
n = int(input())
cards = list(sorted(map(int, input().split()), reverse=True))

a = sum(cards[0::2])
b = sum(cards[1::2])

print(a - b)
Buggy code:
input()
l = list(map(int,input().split()))
l.sort(reverse　=　True)
ans = 0
for i in range(len(l)):
  if i % == 0:
    ans += l[i]
  else:
    ans -= l[i]
print(ans)

Fixed code:
input()
l = list(map(int,input().split()))
list.sort(l,reverse=True)
ans = 0
for i in range(len(l)):
  if i % 2 == 0:
    ans += l[i]
  else:
    ans -= l[i]
print(ans)
Buggy code:
n = int(input())
nums = [int(i) for i in input().split()]

nums.sort_values(reverse=True)
print(sum(nums[0::2]) - sum(nums[1::2]))


Fixed code:
n = int(input())
nums = [int(i) for i in input().split()]

nums.sort(reverse=True)
print(sum(nums[0::2]) - sum(nums[1::2]))
Buggy code:
a = list(map(int, input().split()))
b=sorted(a, reverse=True)
print(sum(b[0::2])-sum(b[1::2]))

Fixed code:
N=int(input())
a = list(map(int, input().split()))
b=sorted(a, reverse=True)
print(sum(b[0::2])-sum(b[1::2]))
Buggy code:
N = map(int, input())
cards = map(int, input().split())

num = cards.sort(reverse=True)

sum_A = 0
sum_B = 0

for i in range(N):
  if i % 2 == 0:
    sum_A += num[i]
  else:
    sum_B += num[i]

print(sum_A - sum_B)

Fixed code:
N = int(input())
cards = list(map(int,input().split()))
 
cards.sort(reverse=True)
 
sum_A = 0
sum_B = 0
 
for i in range(N):
    if i % 2 == 0:
        sum_A += cards[i]
    else:
        sum_B += cards[i]
print(sum_A - sum_B)
Buggy code:
N = int(input())
a = sorted(list(map((int, input().split())), reverse=True))
A = 0
B = 0
for i in range(N):
    if i % 2 == 0:
        A += a[i]
    else:
        B += a[i]

print(A - B)


Fixed code:
N = int(input())
a = list(map(int, input().split()))
asort = sorted(a, reverse=True)
A = 0
B = 0
for i in range(N):
    if i % 2 == 0:
        A += asort[i]
    else:
        B += asort[i]

print(A - B)
Buggy code:
N = int(input())
card_num = list(map(int, input().split()) )
card_num.sort(reverse=True)

alice = 0
bob = 0

for i in range(0,N):
  if i %2 == 0:
    alice += card_num[i]
  else:
    bob   += card_num[i+1] 
ans = int(alice - bob)

print(ans)

Fixed code:
N = int(input())
card_num = list(map(int, input().split()) )
card_num.sort(reverse=True)

alice = 0
bob = 0

for i in range(0,N):
  if i %2 == 0:
    alice += card_num[i]
  else:
    bob   += card_num[i] 
ans = int(alice - bob)

print(ans)
Buggy code:
N = int(input())
A = [int(a) for a in input().split()]
A.sort()
d = 0
for a in A[::2]:
  d += a
for a in A[1::2]:
  d -= a
print(d)


Fixed code:
N = int(input())
A = [int(a) for a in input().split()]
A.sort()
A.reverse()
d = 0
for a in A[::2]:
  d += a
for a in A[1::2]:
  d -= a
print(d)
Buggy code:
input()
a=sorted(map(int, input().split()))[::-1]
print(sum(a[::2]-sum(a[1::2]))

Fixed code:
input()
a=sorted(map(int, input().split()))[::-1]
print(sum(a[::2])-sum(a[1::2]))
Buggy code:
N = int(input())
A = map(int, input().split()).sort()

Alice = 0
Bob = 0
for i, v in enumerate(A[::-1]):
	if i % 2 == 0:
      Alice += v
    else:
      Bob += v
print(Alice - Bob)

Fixed code:
N = int(input())
A = [int(v) for v in input().split()]
A.sort()

Alice = 0
Bob = 0
for i, v in enumerate(A[::-1]):
  if i % 2 == 0:
    Alice += v
  else:
    Bob += v
print(Alice - Bob)
Buggy code:
def main():
  size = input()
  a = map(int, input().split())
  a = merge_sort(a)
  
  alice_res = 0
  bob_res = 0
  
  for i in range(len(a)):
    if i%2 == 0:
      alice_res += a[i]
    else:
      bob_res += a[i]
 
  print(alice_res-bob_res)
  

def merge_sort(array):
  if len(array)<=1:
    return array
  
  spl_size = len(array)//2
  
  left_list = merge_sort(array[:spl_size])
  right_list = merge_sort(array[spl_size:])
  
  return merge_list(left_list, right_list)


def merge_list(left_list, right_list):
  left_index = 0
  right_index = 0
  sorted_list = []
  
  while left_index<len(left_list) and right_index<len(right_list):
    if left_list[left_index] < right_list[right_index]:
      sorted_list.append(right_list[right_index])
      right_index+=1
    else:
      sorted_list.append(left_list[left_index])
      left_index+=1
      
  if left_index == len(left_list):
    sorted_list.extend(right_list[right_index:])
  if right_index == len(right_list):
    sorted_list.extend(left_list[left_index:])
      
  return sorted_list
    
                          
main()

Fixed code:
def main():
  size = input()
  a = list(map(int, input().split()))
  a = merge_sort(a)
  
  alice_res = 0
  bob_res = 0
  
  for i in range(len(a)):
    if i%2 == 0:
      alice_res += a[i]
    else:
      bob_res += a[i]
 
  print(alice_res-bob_res)
  
 
def merge_sort(array):
  if len(array)<=1:
    return array
  
  spl_size = len(array)//2
  
  left_list = merge_sort(array[:spl_size])
  right_list = merge_sort(array[spl_size:])
  
  return merge_list(left_list, right_list)
 
 
def merge_list(left_list, right_list):
  left_index = 0
  right_index = 0
  sorted_list = []
  
  while left_index<len(left_list) and right_index<len(right_list):
    if left_list[left_index] < right_list[right_index]:
      sorted_list.append(right_list[right_index])
      right_index+=1
    else:
      sorted_list.append(left_list[left_index])
      left_index+=1
      
  if left_index == len(left_list):
    sorted_list.extend(right_list[right_index:])
  if right_index == len(right_list):
    sorted_list.extend(left_list[left_index:])
      
  return sorted_list
    
                          
main()
Buggy code:
N = int(input())
a = list( map( int, input().split()))
a = sorted(a)
a.reverse()
Alice_Bob = o
Bob = 1

for i in a:
	Alice_Bob += a * Bob  
	Bob *= -1
    
print(Alice_Bob)


Fixed code:
N = int(input())
a = list( map( int, input().split()))
a = sorted(a)
a.reverse()
Alice_Bob = 0
Bob = 1

for i in a:
	Alice_Bob += i * Bob  
	Bob *= -1
    
print(Alice_Bob)
Buggy code:
N = int(input())
a = list( map( int, input().split()))
a = sorted(a)
Alice = 0
Bob = 0

for i in range(N):
	Alice += int(a[2*i])  
	Bob += int(a[2*i + 1])
    
print(Alice -Bob)

Fixed code:
N = int(input())
a = list( map( int, input().split()))
a = sorted(a)
a.reverse()
Alice = 0
Bob = 0
a.append(0)
a.append(0)

for i in range(N//2 + 1):
	Alice += int(a[2 * i])  
	Bob += int(a[2 * i + 1])
    
print(Alice -Bob)
Buggy code:

N = int(input())
a_list = list(map(int, input().split()))

sort_a_list = sorted(a_list)

alice = 0
bob = 0

for i, a in enumerate(sort_a_list):
    if i % 2 == 0:
        alice += a
    else:
        bob += a

print(alice - bob)

Fixed code:
N = int(input())
a_list = list(map(int, input().split()))

sort_a_list = sorted(a_list, reverse=True)

alice = 0
bob = 0

for i, a in enumerate(sort_a_list):
    if i % 2 == 0:
        alice += a
    else:
        bob += a

print(alice - bob)
Buggy code:
N = int(input())
a = list(map(int, input().split()))
sorted_a = sorted(a)
alice = 0
bob = 0

for i in range(N):
    if i % 2 == 0:
        alice += sorted_a[i]
    else:
        bob += sorted_a[i]
print(alice - bob)

Fixed code:
N = int(input())
a = list(map(int, input().split()))
sorted_a = list(reversed(sorted(a)))
alice = 0
bob = 0
for i in range(N):
    if i % 2 == 0:
        alice += sorted_a[i]
    else:
        bob += sorted_a[i]
print(alice - bob)
Buggy code:
# coding: utf-8
N = int(input())
A = sorted(list(map(int, input().split())), reverse=True)
print(sum(A[::2])-sum([1::2]))

Fixed code:
# coding: utf-8
N = int(input())
A = sorted(list(map(int, input().split())), reverse=True)
print(sum(A[::2])-sum(A[1::2]))
Buggy code:
n = int(input())
a = list(map(int,input().split()))
a.sort()
cnt = 0
sum1 = 0
sum2 = 0
for i in range(n):
	if cnt % 2 == 0:
		sum1 += a[i]
	else:
		sum2 += a[i]
print(sum1 - sum2)

Fixed code:
n = int(input())
a = list(map(int,input().split()))
a.sort(reverse=True)
cnt = 0
sum1 = 0
sum2 = 0
for i in range(n):
	if cnt % 2 == 0:
		sum1 += a[i]
	else:
		sum2 += a[i]
	cnt += 1
print(sum1 - sum2)
Buggy code:
N = int(input())
A = sorted(list(map(int,input().split(' '))),reverse=True)
alice = A[0::2]
bob = A[1::2]
print(num(alice) - num(bob))

Fixed code:
N = int(input())
A = sorted(list(map(int,input().split(' '))),reverse=True)
alice = A[0::2]
bob = A[1::2]
print(sum(alice) - sum(bob))
Buggy code:
from sys import stdin
n = int(stdin.readline().rstrip())
a = [int(x) for x in stdin.readline().rstrip().split()]
ans = 0

a.sort()

for x in range(n):
   if x % 2 == 0:
      ans -= a[x]
   else:
      ans += a[x]

print(ans)

Fixed code:
from sys import stdin
n = int(stdin.readline().rstrip())
a = [int(x) for x in stdin.readline().rstrip().split()]
ans = 0

a.sort(reverse = True)

for x in range(n):
   if x % 2 == 0:
      ans += a[x]
   else:
      ans -= a[x]

print(ans)
Buggy code:
N = int(input())
A = list(map(int,input().split()))
Alice = []
Bob = []
for i in range(1,N+1):
    if i % 2 != 0:
        Alice.append(A[i-1])
    else:
        Bob.append(A[i-1])
print(sum(Alice)-sum(Bob))

Fixed code:
N = int(input())
A = list(map(int,input().split()))
A.sort()
A.reverse()
Alice = []
Bob = []
for i in range(1,N+1):
    if i % 2 != 0:
        Alice.append(A[i-1])
    else:
        Bob.append(A[i-1])
print(sum(Alice)-sum(Bob))
Buggy code:
n = int(input())
cards = [int(i) for i in input().split()]
sorted = cards.sort(reverse=True)
a = 0
b = 0
for i, num in enumerate(sorted):
    if(i % 2 == 0):
        a = a + num
    else:
        b = b + num
print a - b


Fixed code:
n = int(input())
cards = [int(i) for i in input().split()]
cards.sort(reverse=True)
a = 0
b = 0
for i, num in enumerate(cards):
    if(i % 2 == 0):
        a = a + num
    else:
        b = b + num
print(a - b)
Buggy code:
n = input()
a = input().split()
a = map(int, a)
tmp = sorted(a, reverse=True)

al = 0
bo = 0
print(tmp)
for i in range(len(tmp)):
  if i %2 == 0:
    al = al + int(tmp[i])

  else:
    bo = bo + int(tmp[i])

print(al - bo)

Fixed code:
n = input()
a = input().split()
a = map(int, a)
tmp = sorted(a, reverse=True)

al = 0
bo = 0

for i in range(len(tmp)):
  if i %2 == 0:
    al = al + int(tmp[i])

  else:
    bo = bo + int(tmp[i])

print(al - bo)
Buggy code:

S=0
N = int(input())
l = map(int, input().split())

l = list(sorted(l))

for i in range(1, N+1):
    print(i)
    if i%2 == 1:
        S+=l[N-i]
        #print(S)
    else:
        S-=l[N-i]
        #print(S)
            

#print('--------')
print(S)

Fixed code:
S=0
N = int(input())
l = map(int, input().split())

l = list(sorted(l))

for i in range(1, N+1):
    if i%2 == 1:
        S+=l[N-i]
        #print(S)
    else:
        S-=l[N-i]
        #print(S)
            

#print('--------')
print(S)
Buggy code:
import numpy as np
n= int(input())
a_list = sorted(list(map(int, input().split())),reverse=True)
a_array = np.array(a_list)
alice = a_array[::2]
bob = a_array[1::2]
print(sum(alice-bob))

Fixed code:
import numpy as np
n= int(input())
a_list = sorted(list(map(int, input().split())),reverse=True)
a_array = np.array(a_list)
alice = a_array[::2]
bob = a_array[1::2]
print(sum(alice)-sum(bob))
Buggy code:
N = int(input())
cards = map(int, input().split()).sort(reverse=True)
A, B = sum(cards[0::2]), sum(cards[1::2])
print(str(A-B))



Fixed code:
N = int(input())
cards = sorted(map(int, input().split()), reverse=True)
A, B = sum(cards[0::2]), sum(cards[1::2])
print(str(A-B))
Buggy code:
N = int(input())
a = list(map(int, input().split()))
print(sum(sorted(a)[-1:-N:-2]) - sum(sorted(a)[-2:-N-1:-2]))

Fixed code:
N = int(input())
a = list(map(int, input().split()))
print(sum(sorted(a)[-1:-N-1:-2]) - sum(sorted(a)[-2:-N-1:-2]))
Buggy code:
n = int(input())
dat =list(input().split())

for i in dat:
	i = int(i)

dat.sort(reverse=True)

asum = 0
bsum = 0

for i in range(n)
     if i % 2 == 0:
         asum = asum + dat[i]
     else:
         bsum = bsum + dat[i]
		
print(asum-bsum)

Fixed code:
n = int(input())
dat = list(input().split())

dat = list(map(int,dat))

dat.sort(reverse=True)

asum = 0
bsum = 0

for i in range(n):
	if i % 2 == 0:
		asum = asum + dat[i]
	else:
		bsum = bsum + dat[i]
		
print(asum-bsum)
Buggy code:
N = int(input())
A = sorted(list(map(int, input().split())))
print(sum(A[0::2])-sum(A[1::2]))

Fixed code:
N = int(input())
A = sorted(list(map(int, input().split())))
print(sum(A[-1::-2])-sum(A[-2::-2]))
Buggy code:
N = int(input())
a = [map(int, input().split()) for _ in range(N)]
a = sorted(a)[::-1]
Alice = 0
Bob = 0
for i in range(N):
  if i % 2 == 0:
    Alice += a[i]
  else:
    Bob += a[i]
print(Alice - Bob)
  


Fixed code:
N = int(input())
a = list(map(int, input().split()))
a = sorted(a)[::-1]
Alice = 0
Bob = 0
for i in range(N):
  if i % 2 == 0:
    Alice += a[i]
  else:
    Bob += a[i]
print(Alice - Bob)
Buggy code:
N = int(input())
a = list(map(int, input().split()))
a.sort(reverse = True)

Alice = a[0::2]
Bob = a[1::2]

print(Alice - Bob)

Fixed code:
N = int(input())
a = list(map(int, input().split()))
a.sort(reverse = True)

Alice = sum(a[::2])
Bob = sum(a[1::2])

print(Alice - Bob)
Buggy code:

n = int(input())
a = input().split(" ")

a.sort()
m = n % 2

alice = 0
bob = 0

while n > 0:
    if n % 2 == m:
        alice += a[-1]
    else:
        bob += a[-1]
    a.pop()
    n -= 1

print(alice - bob)

Fixed code:
n = int(input())
a = [int(i) for i in input().split(" ")]

a.sort()
m = n % 2

alice = 0
bob = 0

while n > 0:
    if n % 2 == m:
        alice += a[-1]
    else:
        bob += a[-1]
    a.pop()
    n -= 1

print(alice - bob)
Buggy code:
import math

input()
data = sorted(map(int, input().split(' ')))


s = 0
for i, n in enumerate(data):
    s = s + int(math.pow((-1),(i%2)))*n
print(s)

Fixed code:
import math

input()
data = sorted(map(int, input().split(' ')), reverse=True)


s = 0
for i, n in enumerate(data):
    s = s + int(math.pow((-1),(i%2)))*n
print(s)
Buggy code:
n=int(input())
a=list(map(int,input().split()))
a.sort()
ab=list(a[::2])
ac=list(a[1::2])
print(sum(ab)-sum(ac))
#print(ab)
#print(ac)

Fixed code:
n=int(input())
a=list(map(int,input().split()))
a.sort(reverse=True)
ab=list(a[::2])
ac=list(a[1::2])
print(sum(ab)-sum(ac))
#print(ab)
#print(ac)
Buggy code:
def main(N,xs):
    # type: (int, List[int]) -> None
    xs.sort(reverse=True)
    alice = sum(xs[0::2])
    bob = sum(xs[0:1:2])
    print(alice-bob)
    return

if __name__ == '__main__':
    N = int(input())
    xs = list(map(int,input().split()))
    main(N,xs)


Fixed code:
def main(N,xs):
    # type: (int, List[int]) -> None
    xs.sort(reverse=True)
    alice = xs[0::2]
    bob = xs[1::2]
    print(sum(alice)-sum(bob))
    return

if __name__ == '__main__':
    N = int(input())
    xs = list(map(int,input().split()))
    main(N,xs)
Buggy code:
n = int(input())
array = list(map(int, input().split()))

bob = []
alice = []
for i in range(1, n+1):
    if i % 2 == 1:
        max_value = max(array)
        array.remove(max_value)
        alice.append(max_value)
    else:
        min_value = min(array)
        array.remove(min_value)
        bob.append(min_value)

print(sum(alice)-sum(bob))


Fixed code:
n = int(input())
array = list(map(int, input().split()))

bob = []
alice = []
for i in range(1, n+1):
    max_value = max(array)
    if i % 2 == 1:
        alice.append(max_value)
    else:
        bob.append(max_value)
    array.remove(max_value)

print(sum(alice)-sum(bob))