qyliang/CodeNanoFix huggingface dataset:
Buggy code:
N = int(input())
S = list()
for _ in range(N):
    S.append(input())
M = int(input())
for _ in range(M):
    T.append(input())

all_words = set(S+T) # unique strings only
scores = [S.count(w) - T.count(w) for w in all_words]
print(max(0,max(scores)))

Fixed code:
N = int(input())
S = list()
for _ in range(N):
    S.append(input())
M = int(input())
T = list()
for _ in range(M):
    T.append(input())

all_words = set(S+T) # unique strings only
scores = [S.count(w) - T.count(w) for w in all_words]
print(max(0,max(scores)))
Buggy code:
from collections import Counter

N = int(input())
s = [input() for _ in range(N)]
M = int(input())
t = [input() for _ in range(M)]

s_count = Counter(s)
t_count = Counter(t)

s_count.subtract(t_count)

res = list(s_count.values())[0]

if res > 0:
    print(res)
else:
    print(0)

Fixed code:
from collections import Counter

N = int(input())
s = [input() for _ in range(N)]
M = int(input())
t = [input() for _ in range(M)]

s_count = Counter(s)
t_count = Counter(t)

s_count.subtract(t_count)

res = max(s_count.values())

if res > 0:
    print(res)
else:
    print(0)
Buggy code:
s=[input() for _ in range(int(input()))]
t=[input() for _ in range(int(input()))]
 
res=0
for i in set(s):
    res=max(s.count(i)-t.count(i),ans)
print(res)

Fixed code:
s=[input() for _ in range(int(input()))]
t=[input() for _ in range(int(input()))]
 
res=0
for i in set(s):
    res=max(s.count(i)-t.count(i),res)
print(res)
Buggy code:
n=int(input())
word={}
for i in range(n):
    new=input()
    if new in word:
        word[new]+=1
    else:
        word[new]=1
m=int(input())
for i in range(m):
    new=input()
    if new in word:
        word[new]-=1
    else:
        word[new]=-1
        
print(max(word.values()))

Fixed code:
n=int(input())
word={}
for i in range(n):
    new=input()
    if new in word:
        word[new]+=1
    else:
        word[new]=1
m=int(input())
for i in range(m):
    new=input()
    if new in word:
        word[new]-=1
    else:
        word[new]=-1
        
print(max(0,max(word.values())))
Buggy code:
N = int(input())
s_lst = [input() for i in range(N)]
M = int(input())
t_lst = [input() for i in range(M)]

dict = {}
for i in s_lst:
    dict[i] = 0
for i in t_lst:
    dict[i] = 0
for i in s_lst:
    dict[i] += 1
for i in t_lst:
    dict[i] -= 1
infinity = float('inf')
max = -infinity
for i in dict.values():
    if max < i:
        max = i
print(max)


Fixed code:
N = int(input())
s_lst = [input() for i in range(N)]
M = int(input())
t_lst = [input() for i in range(M)]

dict = {}
for i in s_lst:
    dict[i] = 0
for i in t_lst:
    dict[i] = 0
for i in s_lst:
    dict[i] += 1
for i in t_lst:
    dict[i] -= 1
infinity = float('inf')
max = -infinity
for i in dict.values():
    if max < i:
        max = i
print(max) if max > 0 else print(0)
Buggy code:
N = int(input())
dict_s = {}
for var in range(N):
    s = input()
    if s in dict_s:
        dict_s[s] = dict_s[s] + 1
    else:
        dict_s[s] = 1

M = int(input())
dict_t = {}
for var in range(M):
    t = input()
    if t in dict_t:
        dict_t[t] = dict_t[t] + 1
    else:
        dict_t[t] = 1

tensu = []
for key in dict_s.keys():
    if key in dict_t:
        tensu.append(dict_s[key] - dict_t[key])
    else:
        tensu.append(dict_s[key])

print(max(tensu))

Fixed code:
N = int(input())
dict_s = {}
for var in range(N):
    s = input()
    if s in dict_s:
        dict_s[s] = dict_s[s] + 1
    else:
        dict_s[s] = 1

M = int(input())
dict_t = {}
for var in range(M):
    t = input()
    if t in dict_t:
        dict_t[t] = dict_t[t] + 1
    else:
        dict_t[t] = 1

tensu = []
for key in dict_s.keys():
    if key in dict_t:
        tensu.append(dict_s[key] - dict_t[key])
    else:
        tensu.append(dict_s[key])

tensu_max=max(tensu)
if tensu_max < 0:
    print(0)
else:
    print(tensu_max)
Buggy code:
import collections
c=collections.Counter()
n=int(input())
for _ in range(n):
    c[input()] +=1
m=int(input())
for _ in range(m):
    c[input()] -=1
print(c.most_common(1)[0][1])


Fixed code:
import collections
c=collections.Counter()
n=int(input())
for _ in range(n):
    c[input()] +=1
m=int(input())
for _ in range(m):
    c[input()] -=1
print(max(0,c.most_common(1)[0][1]))
Buggy code:
N = int(input())
ls1 = []
ls2 = []
ls3 = []
ans = []
for i in range(N):
    s = input()
    ls1.append(s)
    ls3.append(s)
M = int(input())
for j in range(M):
    t = input()
    ls2.append(t)
    ls3.append(t)
k = set(ls3)
p = list(k)
for i in range(len(p)):
    ans.append(ls1.count(p[i])-ls2.count(p[i]))
print(max(ans))

Fixed code:
N = int(input())
ls1 = []
ls2 = []
ls3 = []
ans = []
for i in range(N):
    s = input()
    ls1.append(s)
    ls3.append(s)
M = int(input())
for j in range(M):
    t = input()
    ls2.append(t)
    ls3.append(t)
k = set(ls3)
p = list(k)
for i in range(len(p)):
    ans.append(ls1.count(p[i])-ls2.count(p[i]))
print(max(0,max(ans)))
Buggy code:
s=[input() for _ in range(int(input()))]
t=[input() for _ in range(int(input()))]
cnt=[0]*(len(s)+1)
for i in range(len(s)):
    cnt[i]=s.count(s[i])-t.count(t[i])
print(max(cnt))



Fixed code:
s=[input() for _ in range(int(input()))]
t=[input() for _ in range(int(input()))]
cnt=[0]*(len(s)+1)
for i in range(len(s)):
    cnt[i]=s.count(s[i])-t.count(s[i])
print(max(cnt))
Buggy code:
import collections
n = int(input())
s = [str(input()) for _ in range(n)]
m = int(input())
t = [str(input()) for _ in range(m)]
s = collections.Counter(s)
t = collections.Counter(t)

for k, j in t.items():
    if k in s:
        s[k] -= j

values, counts = zip(*s.most_common())
print(counts[0])


Fixed code:
import collections
n = int(input())
s = [str(input()) for _ in range(n)]
m = int(input())
t = [str(input()) for _ in range(m)]
s = collections.Counter(s)
t = collections.Counter(t)

for k, j in t.items():
    if k in s:
        s[k] -= j

values, counts = zip(*s.most_common())
print(max(0,counts[0]))
Buggy code:
n=int(input())
s=[input() for _ in range(n)]
m=int(input())
t=[input() for _ in range(m)]

dic={}
for i in s:
    if i in dic:
        dic[i]+=1
    else:
        dic[i]=1

for i in t:
    if i in dic:
        dic[i]-=1
print(max(dic.values()))

Fixed code:
n=int(input())
s=[input() for _ in range(n)]
m=int(input())
t=[input() for _ in range(m)]

dic={}
for i in s:
    if i in dic:
        dic[i]+=1
    else:
        dic[i]=1

for i in t:
    if i in dic:
        dic[i]-=1
ma=max(dic.values())
print(max(ma , 0))
Buggy code:
n = int(input())
blue = {}
for _ in range(n):
  s = input()
  blue[s] += 1
m = int(input())
red = {}
for _ in range(m):
  t = input()
  red[t] += 1
res = -100
for key, value in blue:
  tmp = 0
  if(key in red):
    tmp = blue[key] - red[key]
  else:
    tmp = blue[key]
  if(tmp > res):
    res = tmp
print(res)

Fixed code:
n = int(input())
blue = {}
for _ in range(n):
  s = input()
  if(s in blue):
    blue[s] += 1
  else:
    blue[s] = 1
m = int(input())
red = {}
for _ in range(m):
  t = input()
  if(t in red):
    red[t] += 1
  else:
    red[t] = 1
res = -100
for key, value in blue.items():
  tmp = 0
  if(key in red):
    tmp = blue[key] - red[key]
  else:
    tmp = blue[key]
  if(tmp > res):
    res = tmp
if(res >= 0):
  print(res)
else:
  print(0)
Buggy code:
N=int(input())
result={}
s=[]
t=[]
for i in range(N):
  s.append(input())
  if s[i] in result.keys():
    result[s[i]]+=1
  else:
    result[s[i]]=1
M=int(input())
for j in range(M):
  t.append(input())
  if t[j] in result.keys():
    result[t[j]]-=1
print(max(k for k in result.values() if k > 0))

Fixed code:
N=int(input())
result={}
s=[]
t=[]
for i in range(N):
  s.append(input())
  if s[i] in result.keys():
    result[s[i]]+=1
  else:
    result[s[i]]=1
M=int(input())
for j in range(M):
  t.append(input())
  if t[j] in result.keys():
    result[t[j]]-=1
if max(result.values()) > 0:
  print(max(result.values()))
else:
  print(0)
Buggy code:
N=int(input())
a=list()
for i in range(0,N):
	x=input()
	a.append(x)
M=int(input())
b=list()
for i in range(0,M):
	x=input()
	b.append(x)
A=dict()
B=dict()
for i in a:
	x=a.count(i)
	A[i]=x
for i in b:
	x=a.count(i)
	B[i]=x
res=list()
for i in A:
	if i in B:
		A[i]-=B[i]
m=0
for i in A:
	if A[i]>m:
		m=A[i]
print(m)
		

Fixed code:
N=int(input())
a=list()
for i in range(0,N):
	x=input()
	a.append(x)
M=int(input())
b=list()
for i in range(0,M):
	x=input()
	b.append(x)
A=dict()
B=dict()
for i in a:
	x=a.count(i)
	A[i]=x
for i in b:
	x=b.count(i)
	B[i]=x
res=list()
for i in A:
	if i in B:
		A[i]-=B[i]
m=0
#print(A)
#print(B)
for i in A:
	if A[i]>m:
		m=A[i]
#print(A)
print(m)
Buggy code:
n=int(input())
a=[input()for i in range(n)]
m=int(input())
b=[input() for i in range(m)]
c=[a.count(a[i])-b.count(a[i]) for i in range(n)]
print(max(c))

Fixed code:
n=int(input())
a=[input()for i in range(n)]
m=int(input())
b=[input() for i in range(m)]
c=[a.count(a[i])-b.count(a[i]) for i in range(n)]
print(max(max(c),0))
Buggy code:
# coding: utf-8
# Your code here!

from collections import defaultdict

n = int(input())
x = [input() for _ in range(n)]
m = int(input())
y = [input() for _ in range(n)]

dx = defaultdict(int)
dy = defaultdict(int)

for temp_x in x:
    dx[temp_x] += 1
for temp_y in y:
    dy[temp_y] += 1
    
max_count = 0
for k in dx.keys():
    max_count = max(max_count, dx[k] - dy[k])
    
print(max_count)

Fixed code:
# coding: utf-8
# Your code here!

from collections import defaultdict

n = int(input())
x = [str(input()) for _ in range(n)]
m = int(input())
y = [str(input()) for _ in range(m)]

dx = defaultdict(int)
dy = defaultdict(int)

for temp_x in x:
    dx[temp_x] += 1
for temp_y in y:
    dy[temp_y] += 1
    
max_count = 0
for k in dx.keys():
    max_count = max(max_count, dx[k] - dy[k])
    
print(max_count)
Buggy code:
n=int(input());a=[int(input())for i in range(n)];m=int(input());b=[int(input())for i in range(m)];ans=0
for i in a:ans=max(a.count(i)-b.count(i),ans)
print(ans)

Fixed code:
n=int(input());a=[input()for i in range(n)];m=int(input());b=[input()for i in range(m)];ans=0
for i in a:ans=max(a.count(i)-b.count(i),ans)
print(ans)
Buggy code:
n = int(input())
d = {}
for _ in range(n):
  s = input()
  if s not in d:
    d[s] = 0
  d[s] += 1
m  =int(input())
for _ in range(m):
  s = input()
  if s not in d:
    d[s] = 0
  d[s] -= 1
  
ans = 0
for key in d:
  ans += max(d[key], 0)
print(ans)

Fixed code:
n = int(input())
d = {}
for _ in range(n):
  s = input()
  if s not in d:
    d[s] = 0
  d[s] += 1
m  =int(input())
for _ in range(m):
  s = input()
  if s not in d:
    d[s] = 0
  d[s] -= 1
  
ans = 0
for key in d:
  ans = max(d[key], ans)
print(ans)
Buggy code:

N = int(input())
s = [input() for i in range(N)]

M = int(input())
t = [input() for j in range(M)]

n_num = 0
m_num = 0
x = []
y = []

for i in range(N):
    n_num = s.count(s[i])
    m_num = t.count(s[i]) * -1
    x.append(n_num + m_num)


for j in range(M):
    n_num = s.count(t[j])
    m_num = t.count(t[j]) * -1
    y.append(n_num + m_num)

ans = x + y
print(max(ans))


Fixed code:

N = int(input())
s = [input() for i in range(N)]

M = int(input())
t = [input() for j in range(M)]

n_num = 0
m_num = 0
x = []
y = []

for i in range(N):
    n_num = s.count(s[i])
    m_num = t.count(s[i]) * -1
    x.append(n_num + m_num)


for j in range(M):
    n_num = s.count(t[j])
    m_num = t.count(t[j]) * -1
    y.append(n_num + m_num)

ans = x + y
if max(ans) < 0:
    print(0)
else:
    print(max(ans))
Buggy code:
n = int(input())
dic = {}
for i in range(n):
  s = input()
  if s in dic.keys():
    dic[s] += 1
  else:
    dic[s] = 1

m = int(input())
for i in range(n):
  t = input()
  if t in dic.keys():
    dic[t] -= 1
    
ans = 0
for key in dic.keys():
  ans = max(ans, dic[key])
  
print(max(ans, 0))
  

Fixed code:
n = int(input())
dic = {}
for i in range(n):
  s = input()
  if s in dic.keys():
    dic[s] += 1
  else:
    dic[s] = 1

m = int(input())
for i in range(m):
  t = input()
  if t in dic.keys():
    dic[t] -= 1
    
ans = 0
for key in dic.keys():
  ans = max(ans, dic[key])
  
print(max(ans, 0))
Buggy code:
N = int(input())
s = [int(input()) for _ in range(N)]
M = int(input())
t = [int(input()) for _ in range(M)]

ans = 0
for word in set(s):
    given = s.count(word) - t.count(word)
    ans = max(ans, given)
    
print(ans)

Fixed code:
N = int(input())
s = [input() for _ in range(N)]
M = int(input())
t = [input() for _ in range(M)]

ans = 0
for word in set(s):
    given = s.count(word) - t.count(word)
    ans = max(ans, given)
    
print(ans)
Buggy code:
n = int(input())
dc = {}
for i in range(n):
  s = input()
  if s in dc:
    dc[s] += 1
  else :
    dc[s] = 1
m = int(input())
for i in range(n):
  t = input()
  if t in dc:
    dc[t] -= 1
  else :
    dc[t] = -1
ans = 0
for i in dc:
  ans = max(ans, dc[i])
print(ans)

Fixed code:
n = int(input())
dc = {}
for i in range(n):
  s = input()
  if s in dc:
    dc[s] += 1
  else :
    dc[s] = 1
m = int(input())
for i in range(m):
  t = input()
  if t in dc:
    dc[t] -= 1
  else :
    dc[t] = -1
ans = 0
for i in dc:
  ans = max(ans, dc[i])
print(ans)
Buggy code:
# Problem: https://atcoder.jp/contests/abc091/tasks/abc091_b
# Python 1st Try

import sys
from collections import defaultdict
# import heapq,copy
# from collections import deque
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 LLI(rows_number): return [LI() for _ in range(rows_number)]


def solver(plusCardNum, plusCards, minusCardNum, minusCards):
    result = 0
    selectString = defaultdict(int)
    for j in range(plusCardNum):
        print("{}".format(plusCards[j]))
        selectString[plusCards[j]] = selectString[plusCards[j]] + 1
#    print("{}".format(selectString))
    for j in range(minusCardNum):
        selectString[minusCards[j]] = selectString[minusCards[j]] - 1
    # algorithm
#    print("{}".format(selectString))
    keyList = list(selectString.keys())
#    valueList = list(selectString.values())
    for j in range(0, len(keyList)):
        if result < selectString.get(keyList[j]):
            result = selectString.get(keyList[j])
    #  for j in range(0,len(selectString):
    #    point = selectString[0]

    return result


if __name__ == "__main__":
    N = II()
    NList = []
    for _ in range(0, N, +1):
        NList.append(input())
    M = II()
    MList = []
    for _ in range(0, M, +1):
        MList.append(input())
    print("{}".format(solver(N, NList, M, MList)))


Fixed code:
# Problem: https://atcoder.jp/contests/abc091/tasks/abc091_b
# Python 1st Try

import sys
from collections import defaultdict
# import heapq,copy
# from collections import deque
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 LLI(rows_number): return [LI() for _ in range(rows_number)]


def solver(plusCardNum, plusCards, minusCardNum, minusCards):
    result = 0
    selectString = defaultdict(int)
    for j in range(plusCardNum):
    #    print("{}".format(plusCards[j]))
        selectString[plusCards[j]] = selectString[plusCards[j]] + 1
    for j in range(minusCardNum):
        selectString[minusCards[j]] = selectString[minusCards[j]] - 1
    keyList = list(selectString.keys())
    for j in range(0, len(keyList)):
        if result < selectString.get(keyList[j]):
            result = selectString.get(keyList[j])
    return result


if __name__ == "__main__":
    N = II()
    NList = []
    for _ in range(0, N, +1):
        NList.append(input())
    M = II()
    MList = []
    for _ in range(0, M, +1):
        MList.append(input())
    print("{}".format(solver(N, NList, M, MList)))
Buggy code:
n = int(input())

dic = {}

for i in range(n):
    word = input()

    if word in dic:
        dic[word] += 1
    else:
        dic[word] = 1

m = int(input())

for j in range(m):
    word = input()

    if word in dic:
        dic[word] -= 1
    else:
        dic[word] = -1


print(max(dic[x] for x in dic))

Fixed code:
n = int(input())

dic = {}

for i in range(n):
    word = input()

    if word in dic:
        dic[word] += 1
    else:
        dic[word] = 1

m = int(input())

for j in range(m):
    word = input()

    if word in dic:
        dic[word] -= 1
    else:
        dic[word] = -1


print(max(0,max(dic[x] for x in dic)))
Buggy code:
blue=[]
red=[]
count=countb=countr=x=maxi=0
nblue=int(input())
for c in range(1,nblue+1):
  blue+=[input()]
nred=int(input())
for c in range(1,nred+1):
  red+=[input()]
for c in range(0,len(blue)):
  countb=blue.count(blue[c])
  countr=red.count(blue[c])
  if countr>1:
    countr=red.count(blue[c])
    countb-=countr
  if countb>maxi:
    maxi=countb
    x=c
print(maxi)

Fixed code:
blue=[]
red=[]
count=countb=countr=x=maxi=0
nblue=int(input())
for c in range(1,nblue+1):
  blue+=[input()]
nred=int(input())
for c in range(1,nred+1):
  red+=[input()]
for c in range(0,len(blue)):
  countb=blue.count(blue[c])
  countr=red.count(blue[c])
  if countr>=1:
    countr=red.count(blue[c])
    countb-=countr
  if countb>maxi:
    maxi=countb
    x=c
print(maxi)
Buggy code:
#!/usr/bin/python3
# -*- coding: utf-8 -*-

"""
https://beta.atcoder.jp/contests/abc091/tasks/abc091_b
"""

from collections import defaultdict

rewards = defaultdict(lambda: 0)

N = int(input())
for i in range(N):
    rewards[input()] += 1

M = int(input())
for j in range(M):
    rewards[input()] -= 1

print(max(rewards.values()))





Fixed code:
#!/usr/bin/python3
# -*- coding: utf-8 -*-

"""
https://beta.atcoder.jp/contests/abc091/tasks/abc091_b
"""

from collections import defaultdict

rewards = defaultdict(lambda: 0)

N = int(input())
for i in range(N):
    rewards[input()] += 1

M = int(input())
for j in range(M):
    rewards[input()] -= 1

print(max(0, max(rewards.values())))
Buggy code:
d = {}
N = int(input())
for _ in range(N):
  c = input()
  d[c] = d.get(c, 0)+1
M = int(input())
for _ in range(M):
  c = input()
  d[c] = d.get(c, 0)-1
print(max(d.items(), key=lambda x: x[1])[0])

Fixed code:
d = {}
N = int(input())
for _ in range(N):
  c = input()
  d[c] = d.get(c, 0)+1
M = int(input())
for _ in range(M):
  c = input()
  d[c] = d.get(c, 0)-1
print(max(max(d.items(), key=lambda x: x[1])[1], 0))
Buggy code:
from collections import Counter
n = int(input())
S = Counter([input() for i in range(n)])
m = int(input())
T = Counter([input() for i in range(m)])

ans = 0
for k, v in S.items():
    tmp = 0
    tmp += v
    for k2, v2 in T.items():
        if k2 == k:
            tmp -= v2
        ans = max(ans, tmp)
            
print(ans)

Fixed code:
from collections import Counter
n = int(input())
S = Counter([input() for i in range(n)])
m = int(input())
T = Counter([input() for i in range(m)])

ans = 0
for k, v in S.items():
    tmp = v
    if k in T:
        tmp -= T[k]
    ans = max(ans, tmp)
            
print(ans)
Buggy code:
dic = dict()
for a in range(int(input())):
    i = input()
    if not i in dic:
        dic[i] = 1
    else:
        dic[i] = dic[i]+1
for b in range(int(input())):
    i = input()
    if not i in dic:
        dic[i] = -1
    else:
        dic[i] = dic[i]-1
print(max(max([a for a in dic.values()]), 1))

Fixed code:
dic = dict()
for a in range(int(input())):
    i = input()
    if not i in dic:
        dic[i] = 1
    else:
        dic[i] = dic[i]+1
for b in range(int(input())):
    i = input()
    if not i in dic:
        dic[i] = -1
    else:
        dic[i] = dic[i]-1
print(max(max([a for a in dic.values()]), 0))
Buggy code:
N=int(input())
s = [input() for _ in range(N)]
M=int(input())
t = [input() for _ in range(M)]

l = list(set(s)) 

for k in range(len(l)):
    cnt = max(cnt, s.count(l[k]) - t.count(l[k]))

print(cnt)

Fixed code:
N=int(input())
s = [input() for _ in range(N)]
M=int(input())
t = [input() for _ in range(M)]

l = list(set(s)) 

cnt=0
for k in range(len(l)):
    cnt = max(cnt, s.count(l[k]) - t.count(l[k]))

print(cnt)
Buggy code:
n = int(input())
s = [input() for _ in range(n)]
m = int(input())
t = [input() for _ in range(m)]
x = []
for i in range(n):
  _ = s.count(s[i])-t.count(s[i])
  x.append(_)
print(max(x))

Fixed code:
n = int(input())
s = [input() for _ in range(n)]
m = int(input())
t = [input() for _ in range(m)]
x = [0]
for i in range(n):
  _ = s.count(s[i])-t.count(s[i])
  x.append(_)
print(max(x))
Buggy code:
N = int(input())
s = []
t = []
sum = 0
for i in range(N):
    s.append(input())
M = int(input())
for i in range(M):
    t.append(input())

for i in range(M):
    while t[i] in s:
        s.remove(t[i])

for i in range(len(s)):
    if sum < s.count(s[i]):
        sum = s.count(s[i])
print(sum)


Fixed code:
N = int(input())
s = []
t = []
sum = 0
for i in range(N):
    s.append(input())
M = int(input())
for i in range(M):
    t.append(input())

for i in range(M):
    if t[i] in s:
        s.remove(t[i])

for i in range(len(s)):
    if sum < s.count(s[i]):
        sum = s.count(s[i])
print(sum)
Buggy code:
N = int(input())
card = {}
for i in range(N):
  S = input()
  card[S] = card.get(S, 0) + 1

M = int(input())
for i in range(M):
  S = input()
  card[S] = card.get(S, 0) - 1
  
print(max(max(list(card.values()),0))

Fixed code:
N = int(input())
card = {}
for i in range(N):
  S = input()
  card[S] = card.get(S, 0) + 1
 
M = int(input())
for i in range(M):
  S = input()
  card[S] = card.get(S, 0) - 1

tmp = list(card.values())
tmp.append(0)
print(max(tmp))
Buggy code:
n = int(input())
s = []
t = []

for i in range(0,n):
    s.append(input())
m = int(input())
for i in range(0,m):
    t.append(input())


answer = s.count(s[0]) - t.count(s[0])
for i in range(1,n):
    if s.count(s[i]) - t.count(s[i]) >= answer:
        answer = s.count(s[i]) - t.count(s[i])

print(answer)

    

Fixed code:
n = int(input())
s = []
t = []
 
for i in range(0,n):
    s.append(input())
m = int(input())
for i in range(0,m):
    t.append(input())
 
 
answer = 0
for i in range(0,n):
    if s.count(s[i]) - t.count(s[i]) >= answer:
        answer = s.count(s[i]) - t.count(s[i])
 
print(answer)
Buggy code:
N=int(input())
plus=[input() for i in range(N)]
M=int(input())
minus=[input() for i in range(M)]
S=list(set(plus+minus))
ans=[]
for i in S:
    point=0
    point=plus.count(i)-minus.count(i)
    ans.append(point)
print(max(ans))

Fixed code:
N=int(input())
plus=[input() for i in range(N)]
M=int(input())
minus=[input() for i in range(M)]
S=list(set(plus+minus))
ans=0
for i in S:
    point=0
    point=plus.count(i)-minus.count(i)
    ans=max(ans,point)
print(ans)
Buggy code:
from collections import Counter

N = Counter([input() for _ in range(int(input()))])
M = Counter([input() for _ in range(int(input()))])
print(max(N[key]-M[key] for key in N.keys()))


Fixed code:
from collections import Counter

N = Counter([input() for _ in range(int(input()))])
M = Counter([input() for _ in range(int(input()))])
print(max(0, max(N[key]-M[key] for key in N.keys())))
Buggy code:
n=int(input())
s=[input() for _ in range(n)]
m=int(input())
t=[input() for _ in range(m)]
d={}
for i in range(n):
  d[s[i]] = d.get(s[i],0) + 1
for j in range(m):
  d[t[j]] = d.get(t[j],0) - 1
print(max(d.values()))

Fixed code:
n=int(input())
s=[input() for _ in range(n)]
m=int(input())
t=[input() for _ in range(m)]
d={}
for i in range(n):
  d[s[i]] = d.get(s[i],0) + 1
for j in range(m):
  d[t[j]] = d.get(t[j],0) - 1
print(max(d.values()) if max(d.values())>0 else 0)
Buggy code:
n=int(input())
blue=[]
for i in range(n):
    blue.append(input())
m=int(input())
red=[]
for i in range(m):
    red.append(input())
max=0
for i in blue:
    b=blue.count(i)
    r=red.count(i)
    max=max(b-r,max)
print(max)

Fixed code:
n=int(input())
blue=[]
for i in range(n):
    blue.append(input())
m=int(input())
red=[]
for i in range(m):
    red.append(input())
maximam=0
for i in blue:
    b=blue.count(i)
    r=red.count(i)
    maximam=max(maximam,b-r)
print(maximam)
Buggy code:
n = int(input())
d = {}
for i in range(n):
    a=input()
    if a in d:
        d[a]+=1
    else:
        d[a]=1
m = int(input())
for i in range(n):
    a=input()
    if a in d:
        d[a]-=1
    else:
        d[a]=-1
print(max(d.values()))


Fixed code:
n = int(input())
d = {}
for i in range(n):
    a=input()
    if a in d:
        d[a]+=1
    else:
        d[a]=1
m = int(input())
for i in range(m):
    a=input()
    if a in d:
        d[a]-=1
    else:
        d[a]=-1
m=max(d.values())
if m<0:
    m=0
print(m)