qyliang/CodeNanoFix huggingface dataset:
Buggy code:
N = int(input())
a = list(map(int,input().split()))
a.sorted()
alice = 0
bob = 0
for i in range(N) :
    if i%2 == 0 : 
        alice += a[i]
    elif i%2 == 1 :
        bob += a[i]
print(alice-bob)
    


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

a = list(map(int,input().split()))

for i in range(N):
   for j in reversed(range(i+1,N)):
        print(i,j)
        if a[j] > a[j-1]:
            temp = a[j]
            a[j] = a[j-1]
            a[j-1] = temp

Alice = 0
Bob = 0

k = 0
count =1
while k < N:
    if count % 2 == 0:
        Bob += a[k]
    else:
        Alice += a[k]
    k += 1
    count += 1

print(Alice-Bob)

Fixed code:
N = int(input())

a = list(map(int,input().split()))

for i in range(N):
   for j in reversed(range(i+1,N)):
        #print(i,j)
        if a[j] > a[j-1]:
            temp = a[j]
            a[j] = a[j-1]
            a[j-1] = temp

Alice = 0
Bob = 0

k = 0
count =1
while k < N:
    if count % 2 == 0:
        Bob += a[k]
    else:
        Alice += a[k]
    k += 1
    count += 1

print(Alice-Bob)
Buggy code:
N = int(input())
A = list(map(int, input().split()))

A.sort(reverse=TRUE)
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())
a = list(map(int, input().split()))

a.sort(reverse="True")

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())
A = list(map(int,input().split()))
A = sorted(A,reverse = True)
ans = 0
for i in range(0,N-1,2):
	ans += (A[i] - A[i+1])
print(ans)

Fixed code:
N = int(input())
A = list(map(int,input().split()))
A = sorted(A,reverse = True)
A.insert(N,0)
ans = 0
for i in range(0,N,2):
	ans += (A[i] - A[i+1])
print(ans)
Buggy code:
n = int(input())
a = list(map(int, input().split()))
ans = 0
a.sort(reverse = True)
print(a)

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

print(ans)

Fixed code:
n = int(input())
a = list(map(int, input().split()))
ans = 0
a.sort(reverse = True)

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

print(ans)
Buggy code:
n = int(input())
a = sorted(list(map(int, input().split())))
al = 0
bb = 0
for i in range(n):
  if i % 2 == 0:
    al += a[i]
  else:
    bb += a[i]
print(al - bb)

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

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

Fixed code:
n = int(input())
a = sorted(list(map(int,input().split())),reverse=True)
print(sum(a[0::2])-sum(a[1::2]))
Buggy code:
n = int(input())
l = sorted(map(int, input().split()))
a = 0
b = 0
for i in range(n):
  if i % 2 == 0:
  	a += l.pop()
  else:
    b += l.pop()
print(a)

Fixed code:
n = int(input())
l = sorted(map(int, input().split()))
a = 0
b = 0
for i in range(n):
  if i % 2 == 0:
  	a += l.pop()
  else:
    b += l.pop()
print(a - b)
Buggy code:
card_n = int(input())
card_collection = list(map(int, input().split()))

scores = {"alice" : 0, "bob" :0}
card_collection.sort()
for i, card in enumerate(card_collection):
    if i % 2 == 0:
        scores['bob'] += card
    else:
        scores['alice'] += card
print(scores['alice'] - scores['bob'])

    

Fixed code:
card_n = int(input())
card_collection = list(map(int, input().split()))

scores = {"alice" : 0, "bob" :0}
card_collection.sort(reverse = True)
for i, card in enumerate(card_collection):
    if i % 2 == 0:
        scores['alice'] += card
    else:
        scores['bob'] += card
print(scores["alice"] - scores["bob"])
Buggy code:
n = int(input())

a = sorted(list(map(int, input().split())), reversed=True)
ans = sum(a[::2]) - sum(a[1::2])
print(ans)

Fixed code:
n = int(input())

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

Fixed code:
_ = input()
l = list(map(int,input().split()))
l.sort()
l.reverse()
print(sum(l[::2])-sum(l[1::2]))
Buggy code:
n=int(input())
a=list(map(int,input().split()))
a.sort(reverse=True)
A=0
B=0
while len(a) >1:
    A += a.pop(0)
    if len(a)==0:
        break
    B += a.pop(0)
print(A-B)

Fixed code:
n=int(input())
a=list(map(int,input().split()))
a.sort(reverse=True)
A=0
B=0
while len(a) >=1:
    A += a.pop(0)
    if len(a)==0:
        break
    B += a.pop(0)
print(A-B)
Buggy code:
n=int(input())
a=list(map(int,input().split()))
a.sort()
x,y=[0,0]
for i in range(n):
    if(i%2==0):
        x+=a[i]
    else:
        y+=a[i]
print(sum(x)-sum(y))

Fixed 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+=a[i]
    else:
        y+=a[i]
print(x-y)
Buggy code:
N = int(input())
a = list(map(int,input().split()))
a.sort()
a.reverse()
Alice = []
Bob = []
if N % 2 == 0:
    for i in range(N//2):
        Alice.append(a[i*2])
        Bob.append(a[i*2+1])
elif N % 2 == 1 and N != 1:
    for i in range((N-1)//2):
        Alice.append(a[i*2])
        Bob.append(a[i*2+1])
        Alice.append(a[-1])
        print(sum(Alice) - sum(Bob))
else:
    print(a[0])

Fixed code:
N = int(input())
a = list(map(int,input().split()))
a.sort()
a.reverse()
Alice = []
Bob = []
if N % 2 == 0:
    for i in range(N//2):
        Alice.append(a[i*2])
        Bob.append(a[i*2+1])
    print(sum(Alice) - sum(Bob))
elif N % 2 == 1 and N != 1:
    for i in range((N-1)//2):
        Alice.append(a[i*2])
        Bob.append(a[i*2+1])
    Alice.append(a[-1])
    print(sum(Alice) - sum(Bob))
elif N == 1:
    print(a[0])
Buggy code:
n = int(input())
alice = 0
bob = 0
cards = [int(val) for val in input().split()]

cards = sorted(cards, reverse=True)

print(cards)

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

Fixed code:
n = int(input())
alice = 0
bob = 0
cards = [int(val) for val in input().split()]

cards = sorted(cards, reverse=True)

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

alice = 0
bob = 0

for i in range(len(a)):
    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.sort(reverse=True)

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:
a=int(input())
b=[int(i) for i in input().split()]
c=sorted(b)
#print(c)
d=sum(c[0::2])
e=sum(c[1::2])
print(e-d)


Fixed code:
a=int(input())
b=[int(i) for i in input().split()]
c=sorted(b)
#print(c)
d=sum(c[0::2])
e=sum(c[1::2])
print(abs(e-d))
Buggy code:
n= int(input())
a = list(map(int,input().split()))
c = 0

a.sort()[::-1]

for i in range(n):
    c = c + ((-1)**(i%2))*c[i]

print(c)

Fixed code:
n= int(input())
a = list(map(int,input().split()))
c = 0

a.sort()
a = a[::-1]
for i in range(n):
    c = c + ((-1)**(i%2))*a[i]

print(c)
Buggy code:
N = int(input())
a = map(int, input().split())

a.sort(reverse=True)

print(sum(a[::2])-sum(a[1::2]))

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

Fixed code:
N = int(input())
a = sorted(map(int, input().split()))[::-1]
print(sum(a[::2]) - sum(a[1::2]))
Buggy code:
N=int(input())
a = [int(i) for i in input().split()] 
a.sort()
p1=a[0:N:2]
p2=a[1:N:2]
sum1=0
sum2=0
for i in p1:
	sum1+=i
for i in p2:
	sum2+=i

print(sum1-sum2)

Fixed code:
N=int(input())
a = [int(i) for i in input().split()] 
a.sort(reverse=True)
p1=a[0:N:2]
p2=a[1:N:2]
sum1=0
sum2=0
for i in p1:
	sum1+=i
for i in p2:
	sum2+=i

print(sum1-sum2)
Buggy code:
N = int(input())
a = list(map(int,input().split())).sort(reverse=True)
answer = 0
for i in range(0,N,2):
  answer += a[i]
for i in range(1,N,2):
  answer -= a[i]
print(answer)

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


Fixed code:
n=int(input())
s=list(map(int,input().split()))
s=sorted(s)
s.reverse()
sum=0
for i in range(n):
    if i%2==0:
        sum+=s[i]
    else:
        sum-=s[i]
print(int(sum))
Buggy code:
n = int(input())
ls = list(map(int, input().split()))
ls.sort()
ls.reverse()
lsa = []
lsb = []
for i in range(n):
    if i // 2 == 0:
        lsa += [ls[i]]
    else:
        lsb += [ls[i]]
a = sum(lsa)
b = sum(lsb)
c = a - b
print(c)


Fixed code:
n = int(input())
ls = list(map(int, input().split()))
ls.sort()
ls.reverse()
lsa = []
lsb = []
for i in range(n):
    if i % 2 == 0:
        lsa += [ls[i]]
    else:
        lsb += [ls[i]]
a = sum(lsa)
b = sum(lsb)
c = a - b
print(c)
Buggy code:
n = int(input())
lis = list(map(int,input().split()))
lis = sorted(lis)
ans = 0
for i in range(n):
 if i % 2 == 0:
  ans -= lis[i]
 else:
  ans += lis[i]
print(ans)

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

A = 0
B = 0
idx = 0
for card in cards:
    if idx % 2 == 0:
        A += card
    else:
        B += card
    idx += 1


print(str(A-B))
~

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

A = 0
B = 0
idx = 0
for card in cards:
    if idx % 2 == 0:
        A += card
    else:
        B += card
    idx += 1
result = A - B
print(result)
Buggy code:
n = int(input())
a = list(map(int, input().split()))

a.sort(reverce = True)

alice = sum(a[0::2])
bob = sum(a[1::2])

print(alice - bob)


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

a.sort(reverse = True)

alice = sum(a[0::2])
bob = sum(a[1::2])

print(alice - bob)
Buggy code:
if __name__ == '__main__':
    n = int(input())
    cardlist = list(map(int, input().split()))
    cardlist.sort()

    alice_s, bob_s = 0, 0
    while cardlist != []:
        alice_s += cardlist.pop()
        bob_s += cardlist.pop()
    ans = alice_s - bob_s
    print(ans)

Fixed code:
if __name__ == '__main__':
    n = int(input())
    cardlist = list(map(int, input().split()))
    cardlist.sort()

    alice_s, bob_s = 0, 0
    while cardlist != []:
        alice_s += cardlist.pop()
        if cardlist == []:
            break
        bob_s += cardlist.pop()
    ans = alice_s - bob_s
    print(ans)
Buggy code:
import nummpy as np

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

Alice = []
Bob = []
for i in range(N):
  if i%2==0:
    Alice.append(max(A))
    A.remove(max(A))
  else:
    Bob.append(max(A))
    A.remove(max(A))

Alice = np.array(Alice)
Bob = np.array(Bob)

ans = np.sum(Alice) -np.sum(Bob)

print(ans)

Fixed code:
import numpy as np

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

Alice = []
Bob = []
for i in range(N):
  if i%2==0:
    Alice.append(max(A))
    A.remove(max(A))
  else:
    Bob.append(max(A))
    A.remove(max(A))

Alice = np.array(Alice)
Bob = np.array(Bob)

ans = np.abs(np.sum(Alice) -np.sum(Bob))

print(ans)
Buggy code:
n = int(input())
a = list(map(int, input().split()))
a.sort(reverse=True)
alice = sum([i for i in a if i%2 == 0])
bob = sum([i for i in a if i%2 == 1])
print(alice-bob)


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

x_list=list(map(int,input().split()))
x_list=sorted(x_list)

a,b=0,0

for i in range(N):
    if((i+1)%2!=0):
        a+=x_list[i]
    else:
        b+=x_list[i]

print(a-b)

Fixed code:
N=int(input())

x_list=list(map(int,input().split()))
x_list=sorted(x_list,reverse=True)

a,b=0,0

for i in range(N):
    if((i+1)%2!=0):
        a+=x_list[i]
    else:
        b+=x_list[i]

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

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

a.sort()

ALICE = sum(a[::2])
BOB = sum(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())
card = list(map(int, input().split()))

alice = []
bob = []
for i in range(1, n):
    val = max(card)
    del card[card.index(val)]
    if i % 2 == 1:
        alice.append(val)
    else:
        bob.append(val)

diff = sum(alice) - sum(bob)
print(diff)



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

alice = []
bob = []
for i in range(1, n+1):
    val = max(card)
    del card[card.index(val)]
    if i % 2 == 1:
        alice.append(val)
    else:
        bob.append(val)

diff = sum(alice) - sum(bob)
print(diff)
Buggy code:
import sys
from itertools import combinations
import math


def I(): return int(sys.stdin.readline().rstrip())


def LI(): return list(map(int, sys.stdin.readline().rstrip().split()))


def S(): return sys.stdin.readline().rstrip()


def LS(): return list(sys.stdin.readline().rstrip().split())


N = I()
A = LI()

A.sort()
alice = 0
bob = 0
flag = 0
for i in A:
    if flag % 2 == 0:
        alice += i
    else:
        bob += i
    flag += 1
print(alice-bob)


Fixed code:
import sys
from itertools import combinations
import math


def I(): return int(sys.stdin.readline().rstrip())


def LI(): return list(map(int, sys.stdin.readline().rstrip().split()))


def S(): return sys.stdin.readline().rstrip()


def LS(): return list(sys.stdin.readline().rstrip().split())


N = I()
A = LI()

A.sort()
A = A[::-1]
alice = 0
bob = 0
flag = 0
for i in A:

    if flag % 2 == 0:
        alice += i
    else:
        bob += i
    flag += 1
print(alice-bob)
Buggy code:
import sys
import numpy as np

sys.setrecursionlimit(10 ** 6)
int1 = lambda x: int(x) - 1
printV = lambda x: print(*x, sep="\n")
printH = lambda x: print(" ".join(map(str,x)))
def IS(): return sys.stdin.readline()[:-1]
def II(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LI1(): return list(map(int1, sys.stdin.readline().split()))
def LII(rows_number): return [II() for _ in range(rows_number)]
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]

def main():
	n = II()
	a = LI()
	a.sort(reverse=True)
	a = np.array(a)
	print(np.sum(a[0::2]) - np.sum(a[1::]))


if __name__ == '__main__':
	main()

Fixed code:
import sys
import numpy as np

sys.setrecursionlimit(10 ** 6)
int1 = lambda x: int(x) - 1
printV = lambda x: print(*x, sep="\n")
printH = lambda x: print(" ".join(map(str,x)))
def IS(): return sys.stdin.readline()[:-1]
def II(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LI1(): return list(map(int1, sys.stdin.readline().split()))
def LII(rows_number): return [II() for _ in range(rows_number)]
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]

def main():
	n = II()
	a = LI()
	a.sort(reverse=True)
	a = np.array(a)
	print(np.sum(a[0::2]) - np.sum(a[1::2]))


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

alice = 0
bob = 0

a.reverse()

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()))

alice = 0
bob = 0

a.sort(reverse = True)

for i in range(n):
    if i % 2 == 0:
        alice += a[i]

    else:
        bob += a[i]

print(alice - bob)
Buggy code:
N = int(input())
alist = map(int, input().split())
alist.sort()
alist.reverse()
score_a = sum(alist[::2])
score_b = sum(alist[1::2])
print(score_a - score_b)

Fixed code:
N = int(input())
alist = list(map(int, input().split(" ")))
alist.sort()
alist.reverse()
score_a = sum(alist[::2])
score_b = sum(alist[1::2])
print(score_a - score_b)
Buggy code:
import sys
n = int(sys.stdin.readline())
a = [int(s) for s in sys.stdin.readline().split()]
a.sort(reverse=True)
a_sum = 0
b_sum = 0
for i in range(n):
    if i % 2 == 1:
        a_sum += a[i]
    else:
        b_sum += b[i]
print(a_sum - b_sum)

Fixed code:
import sys
n = int(sys.stdin.readline())
a = [int(s) for s in sys.stdin.readline().split()]
a.sort(reverse=True)
a_sum = 0
b_sum = 0
for i in range(n):
    if i % 2 == 0:
        a_sum += a[i]
    else:
        b_sum += a[i]
print(a_sum - b_sum)
Buggy code:
N=int(input())
numbers=list(map(int,input().split()))
new_numbers=sorted(numbers,reverse=True)
Alice=0

Bob=0
for i in range(N//2+N%2):
    Alice+=numbers[2*i]
for i in range(N//2):
    Bob+=numbers[2*i+1]
print(Alice-Bob) 


Fixed code:
N=int(input())
numbers=list(map(int,input().split()))
new_numbers=sorted(numbers,reverse=True)
Alice=0

Bob=0
for i in range(N//2+N%2):
    Alice+=new_numbers[2*i]
for i in range(N//2):
    Bob+=new_numbers[2*i+1]
print(Alice-Bob)
Buggy code:
n = int(input())
a = list(map(int,input().split()))
alice = 0
bob = 0

a.sort()
a.reverse()


for i in range (0,n):
    if i % 2:
        bob += a[i]
    else:
        alice += a[i]

print(alice - bob)
print(a)    


Fixed code:
n = int(input())
a = list(map(int,input().split()))
alice = 0
bob = 0

a.sort()
a.reverse()


for i in range (0,n):
    if i % 2:
        bob += a[i]
    else:
        alice += a[i]

print(alice - bob)
Buggy code:
n=int(input())
lista=list(map(int,input().split()))
lista.sort()
alice=list()
bob=list()
for i in range(n):
    if i%2==0:
        alice.append(lista[i])
    else: 
        bob.append(lista[i])

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

Fixed code:
n=int(input())
lista=list(map(int,input().split()))
lista.sort(reverse=True)
alice=list()
bob=list()
for i in range(n):
    if i%2==0:
        alice.append(lista[i])
        
    else: 
        bob.append(lista[i])

print(sum(alice)-sum(bob))
Buggy code:
n = int(input())
A = list(map(int,input().split()))
A_0 = A.sort(reverse=True)
swt = 0
Alice_point = 0
Bob_point = 0

for i in range(n):
    if swt == 0:
        Alice_point += A_0[i]
        swt = 1
    else:
        Bob_point += A_0[i]
        swt = 0
print(Alice_point - Bob_point)


Fixed code:
n = int(input())
A = list(map(int,input().split()))
A_0 = A.sort(reverse=True)
swt = 0
Alice_point = 0
Bob_point = 0

for i in range(n):
    if swt == 0:
        Alice_point += A[i]
        swt = 1
    else:
        Bob_point += A[i]
        swt = 0
print(Alice_point - Bob_point)
Buggy code:
N=int(input())
alise=0
bob=0
a_list=list(map(int,input().split()))
a_sort=sorted(a_list)[::-1]
for i in range(N//2+N%2):
    alise+=a_sort.pop(0)
    bob+=a_sort.pop(0)
print(alise-bob)

Fixed code:
N=int(input())
alise=0
bob=0
a_list=list(map(int,input().split()))
a_sort=sorted(a_list)
for i in range(N,0,-2):
    alise+=a_sort[i-1]
for i in range(N-1,0,-2):
    bob+=a_sort[i-1]
print(alise-bob)
Buggy code:
n=int(input())
l=list(map(int,input().split()))
l.sort(reverse=True)
alice,bob=[],[]
for i in range(1,n+1):
    if i%2==1: alice.append(l[i])
    elif i%2==0: bob.append(l[i])
print(sum(alice)-sum(bob))

Fixed code:
n=int(input())
l=list(map(int,input().split()))
l.sort(reverse=True)
alice,bob=[],[]
for i in range(1,n+1):
    if i%2==1: alice.append(l[i-1])
    elif i%2==0: bob.append(l[i-1])
print(sum(alice)-sum(bob))
Buggy code:
N = int(input())
A = list(map(int,input().split()))
a = 0
b = 0
A.sort(reverse=True)
for i in range(0,len(A),2):
    a = a + A[i]
    if i+1<=len(A):
        b = b + A[i+1]
print(a-b)

Fixed code:
N = int(input())
A = list(map(int,input().split()))
a = 0
b = 0
A.sort(reverse=True)
for i in range(N):
    if i%2 == 0:
        a = a + A[i]
    if i%2 == 1:
        b = b + A[i]
print(a-b)
Buggy code:
N = int(input())
a = [110]
a = list(map(int, input().sprit()))
a.sort(reverse=True)
 
Alis = 0
Bob = 0
for j in range(N):
  if j % 2 == 0:
    Alis += a[j]
  else:
    Bob += a[j]
 
print(Alis-Bob)

Fixed code:
N = int(input())
a = [110]
a = list(map(int, input().split()))
a.sort(reverse=True)
 
Alis = 0
Bob = 0
for j in range(N):
  if j % 2 == 0:
    Alis += a[j]
  else:
    Bob += a[j]
    
print(Alis-Bob)
Buggy code:
N = int(input())
cards = list(map(int, input().split()))

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

print(alice-bob)

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

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

print(alice-bob)
Buggy code:
N = int(input())
Ai = input().split()
Ai = [int(n) for n in Ai]
Ai = sorted(Ai, reverse=True)
Alice = 0
Bob = 0
i = 0
while True:
  if i+1 <= N:
    Alice += Ai[i]
    Bob = Alice[i+1]
  if i == N:
    Alice += Ai[i]
  if i > N:
    break
  i = i + 2

print(Alice - Bob)
    

Fixed code:
N = int(input())
Ai = input().split()
Ai = [int(n) for n in Ai]
Ai = sorted(Ai, reverse=True)
Alice = 0
Bob = 0
i = 0
while True:
  if i+1 <= N-1:
    Alice += Ai[i]
    Bob += Ai[i+1]
  if i == N-1:
    Alice += Ai[i]
  if i > N-1:
    break
  i = i + 2

print(Alice - Bob)
Buggy code:
n = int(input())
a = list(map(int,input().split()))

a.sort(reverse = True)

su = 0

for i in range(n:
    if i % 2 == 0:
        su += a[i]
    else:
        su -= a[i]
print(su)

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

a.sort(reverse = True)

su = 0

for i in range(n):
    if i % 2 == 0:
        su += a[i]
    else:
        su -= a[i]
print(su)
Buggy code:
n=int(input())
a=list(map(int,input().split()))
a=sorted(a)
ans=0
for i in range(n):
    ans+=a[-i]*(-1)**(i+1)
print(ans)


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

ans=0
for i in range(n):
    ans+=a[-i-1]*(-1)**(i)
    
    
print(ans)
Buggy code:
N = int(input())
A = list(map(int,input().split()))

A.sort(reverse = True)
Alice =Bob =0

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

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

A.sort(reverse = True)
Alice =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()))
if len(A) & 1:
  A.append(0)
A.sort()
print(sum([A[i+1]-A[i] for i in range(0, A, 2)]))

Fixed code:
N = int(input())
A = list(map(int, input().split()))
if len(A) & 1:
  A.append(0)
A.sort()
print(sum([A[i+1]-A[i] for i in range(0, len(A), 2)]))