qyliang/CodeNanoFix huggingface dataset:
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_counter = Counter(S)
t_counter = Counter(T)

result = 0

for k, v in s_counter:
    result = max(result, v - (t_counter[k] if t_counter[k] else 0))

print(result)


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_counter = Counter(S)
t_counter = Counter(T)

result = 0

for k, v in s_counter.items():
    result = max(result, v - (t_counter[k] if t_counter[k] else 0))

print(result if result > 0 else 0)
Buggy code:
n=int(input())
s=[input() for _ in range(n)]
m=int(input())
t=[input() for _ in range(m)]
ans=0
buf=0
s.sort()
t.sort()
for i in range(n):
    buf=0
    for j in range(i,n):
        if s[i]==s[j]:
            buf+=1
        elif s[i]>s[j]:
            break
    for j in range(m):
        if s[i]==t[j]:
            buf-=1
        elif s[i]>t[j]:
            break
    if buf>ans:
        ans=buf
print(ans)  

Fixed code:
n=int(input())
s=[input() for _ in range(n)]
m=int(input())
t=[input() for _ in range(m)]
ans=0
buf=0
s.sort()
t.sort()
for i in range(n):
    buf=0
    for j in range(i,n):
        if s[i]==s[j]:
            buf+=1
        elif s[i]<s[j]:
            break
    for j in range(m):
        if s[i]==t[j]:
            buf-=1
        elif s[i]<t[j]:
            break
    if buf>ans:
        ans=buf
print(ans)
Buggy code:
N = int(input())

b = {}
for i in range(N):
  s = str(input())
  if b.get(s) is None:
    b[s] = 1
  else:
    b[s] += 1
    
r = {}
for i in range(N):
  s = str(input())
  if r.get(s) is None:
    r[s] = 1
  else:
    r[s] += 1

ans = -999999
for st in b:
  if r.get(st) is None:
    ans = max(ans, b[st])
  else:
    ans = max(ans, b[st] - r[st])
print(ans)
 


Fixed code:
N = int(input())

b = {}
for i in range(N):
  s = str(input())
  if b.get(s) is None:
    b[s] = 1
  else:
    b[s] += 1
    
r = {}
M = int(input())
for i in range(M):
  s = str(input())
  if r.get(s) is None:
    r[s] = 1
  else:
    r[s] += 1

ans = -999999
for st in b:
  if r.get(st) is None:
    ans = max(ans, b[st])
  else:
    ans = max(ans, b[st] - r[st])
if ans >= 0:
  print(ans)
else:
  print(0)
Buggy code:
N = int(input())
worddict = {}
for i in range(N):
  s = input()
  if s in worddict:
    worddict[s] += 1
  else:
    worddict[s] = 1
    
M = int(input())
for i in range(M):
  t = input()
  if t in worddict:
    worddict[t] -= 1
    
maxyen = 0
for i in worddict:
  maxyen = max(maxyen, worddict[i])

Fixed code:
N = int(input())
worddict = {}
for i in range(N):
  s = input()
  if s in worddict:
    worddict[s] += 1
  else:
    worddict[s] = 1
    
M = int(input())
for i in range(M):
  t = input()
  if t in worddict:
    worddict[t] -= 1
    
maxyen = 0
for i in worddict:
  maxyen = max(maxyen, worddict[i])
print(maxyen)
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):
    t = input()
    if t not in D: D[t]=0
    D[t] -= 1

print(max(D.values()))

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):
    t = input()
    if t not in D: D[t]=0
    D[t] -= 1

print(max(0, max(D.values())))
Buggy code:
n = int(input())
blues = [input() for _ in range(n)]
m = int(input())
reds = [input() for _ in range(m)]
words = set(blues)
_max = 0
for w in words:
    score = 0
    score += blues.count(w)
    score -= reds.count(w)
    print(w, score)
    if _max < score:
        _max = score
print(_max)

Fixed code:
n = int(input())
blues = [input() for _ in range(n)]
m = int(input())
reds = [input() for _ in range(m)]
words = set(blues)
_max = 0
for w in words:
    score = 0
    score += blues.count(w)
    score -= reds.count(w)
    if _max < score:
        _max = score
print(_max)
Buggy code:
N = int(input())
words = []
for _ in range(N):
  words.append(('plus', input()))
M = int(input())
for _ in range(M):
  words.append(('minus', input()))
ans = 0
for i in range(N):
  point = 1
  for j in range(N+M):
    if words[i][1] == words[j][1]:
      if words[j][0] == 'plus':
        point += 1
      else:
        point -= 1
  ans = max(ans, point)

Fixed code:
N = int(input())
words = []
for _ in range(N):
  words.append(('plus', input()))
M = int(input())
for _ in range(M):
  words.append(('minus', input()))
ans = 0
for i in range(N):
  point = 1
  for j in range(N+M):
    if words[i][1] == words[j][1] and i != j:
      if words[j][0] == 'plus':
        point += 1
      else:
        point -= 1
  ans = max(ans, point)
print(ans)
Buggy code:
from collections import Counter
n=int(input())
a=[input() for i in range(n)]
m=int(input())
b=[input() for i in range(m)]
ca = Counter(a)
cb = Counter(b)
ans = 0
for s,n in ca.items():
  ans.append(n-cb[s])
print(max(ans))

Fixed code:
from collections import Counter
n=int(input())
a=[input() for i in range(n)]
m=int(input())
b=[input() for i in range(m)]
ca = Counter(a)
cb = Counter(b)
ans = [0]
for s,n in ca.items():
  ans.append(n-cb[s])
print(max(ans))
Buggy code:
n = int(input())
s = [input() for i in range(n)]
m = int(input())
t = [input() for i in range(m)]

memo = {}
for i in range(n):
  if s[i] not in memo:
    memo[s[i]] = 1
  else:
    memo[s[i]] +=1

for i in range(m):
  if t[i] in memo:
    memo[t[i]] -=1

    
print(max(memo[max(memo)],0))



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

memo = {}
for i in range(n):
  if s[i] not in memo:
    memo[s[i]] = 1
  else:
    memo[s[i]] +=1

for i in range(m):
  if t[i] in memo:
    memo[t[i]] -=1

ans=0
for i in memo:
  ans = max(memo[i],ans)
print(ans)
Buggy code:
import sys
from collections import defaultdict

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

d=defaultdict(int)
for x in s:
  d[x]+=1
for y in t:
  d[y]-=1

print(max(d.values()))

Fixed code:
from collections import defaultdict

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

d=defaultdict(int)
for x in s:
  d[x]+=1
for y in t:
  d[y]-=1

print(max(0,max(d.values())))
Buggy code:
n=int(input())
s=list(input() for i in range(n))
m=int(input())
t=list(input() for j in range(m))
l=list(set(n))
ans=(max(0,s.count(l[k])-t.count(l[k])) for k in range(len(l)))

Fixed code:
n=int(input())
s=list(input() for i in range(n))
m=int(input())
t=list(input() for j in range(m))
l=list(set(s))
ans=max(0,max(s.count(l[k])-t.count(l[k]) for k in range(len(l))))
print(ans)
Buggy code:
n = int(input())
s = [input() for _ in range(n)]
m = int(input())
t = [input() for _ in range(m)]
cnt_dict = {}
for si in s:
    cnt_dict[si] = 0
for ti in t:
    cnt_dict[ti] = 0
for si in s:
  	cnt_dict[si] += 1
for ti in t:
    cnt_dict[ti] -= 1
print(max(cnt_dict.values()))

Fixed code:
n = int(input())
s = [input() for _ in range(n)]
m = int(input())
t = [input() for _ in range(m)]
cnt_dict = {}
for si in s:
    cnt_dict[si] = 0
for ti in t:
    cnt_dict[ti] = 0
for si in s:
  	cnt_dict[si] += 1
for ti in t:
    cnt_dict[ti] -= 1
print(max(max(cnt_dict.values()), 0))
Buggy code:
n = int(input())
s = [input() for i in range(n)]
m = int(input())
t = [input() for i in range(m)]

print(max(s.count(S) - t.count(S) for S in s) + [0])

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

print(max([s.count(S) - t.count(S) for S in s] + [0]))
Buggy code:
import collections

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

s_col = collections.Counter(s)
t_col = collections.Counter(t)

s_com = s_col.most_common()
t_com = t_col.most_common()

ans = []

for item in s:
    try:
        ans.append(s_col[item] - t_col[item])
    except:
        ans.append(s_col[item])

print(max(ans))

Fixed code:
import collections

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

s_col = collections.Counter(s)
t_col = collections.Counter(t)

s_com = s_col.most_common()
t_com = t_col.most_common()

ans = []

for item in s:
    try:
        ans.append(s_col[item] - t_col[item])
    except:
        ans.append(s_col[item])

print(max(max(ans), 0))
Buggy code:
a=[]
b=[]
m=0

for _ in [0]*int(input()):
  a += input()
for _ in [0]*int(input()):
  b += input()

for s in a:
  m = max(m, a.count(s)-b.count(s))
print(m)


Fixed code:
a=[]
b=[]
m=0

for _ in [0]*int(input()):
  a += [input()]
for _ in [0]*int(input()):
  b += [input()]

for s in a:
  m = max(m, a.count(s)-b.count(s))
print(m)
Buggy code:
N = int(input())
L1 = []
for i in range(N) :
    L1.append(input())
M = int(input())
L2 = []
for i in range(M) :
    L2.append(input())
ans = -10**8
L3 = list(set(L1))
for i in range(len(L3)) :
    p = L1.count(L3[i])
    q = L2.count(L3[i])
    if ans < p-q :
        ans = p-q
print(ans)


Fixed code:
N = int(input())
L1 = []
for i in range(N) :
    L1.append(input())
M = int(input())
L2 = []
for i in range(M) :
    L2.append(input())
ans = -10**8
L3 = list(set(L1))
for i in range(len(L3)) :
    p = L1.count(L3[i])
    q = L2.count(L3[i])
    if ans < p-q :
        ans = p-q
if ans < 0 :
    ans = 0
print(ans)
Buggy code:
n = int(input())
s = [input() for i in range(n)]
m = int(input())
t = [input() for i in range(m)]

ans = 0

for w in s:
    ans = max(ans, s.count(w) - 2 * t.count(w))

print(ans)

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

ans = 0

for w in s:
    ans = max(ans, s.count(w) -  t.count(w))

print(ans)
Buggy code:
N = int(input())
s = [input() for i in range(N)]
M = int(input())
t = [input() for i in range(M)]
print( max( [s.count(a) - t.count(a) for a in s]) )

Fixed code:
N = int(input())
s = [input() for i in range(N)]
M = int(input())
t = [input() for i in range(M)]
print( max(0, max( [s.count(a) - t.count(a) for a in s])) )
Buggy code:
import collections

n = int(input())
blueCards = [input() for i in range(n)]
blueCards = collections.Counter(blueCards)
m = int(input())
redCards = [input() for i in range(m)]
redCards = collections.Counter(redCards)

diff = blueCards - redCards
print(diff.most_common()[0][1])

Fixed code:
import collections

n = int(input())
blueCards = [input() for i in range(n)]
blueCards = collections.Counter(blueCards)
m = int(input())
redCards = [input() for i in range(m)]
redCards = collections.Counter(redCards)

diff = blueCards - redCards
print(diff.most_common()[0][1]) if diff else print(0)
Buggy code:
n = int(input())
s = ["0"]*n
dict = {}
for i in range(n):
    s[i] = input()
    if s[i] in dict:
        dict[s[i]] += 1
    else:
        dict[s[i]] = 1

m = int(input())
t = ["0"]*m
for i in range(m):
    t[i] = input()
    if t[i] in dict:
         dict[t[i]] -= 1
    else:
         dict[t[i]] = -1
print(max(dict.values()))

Fixed code:
n = int(input())
s = ["0"]*n
dict = {}
for i in range(n):
    s[i] = input()
    if s[i] in dict:
        dict[s[i]] += 1
    else:
        dict[s[i]] = 1

m = int(input())
t = ["0"]*m
for i in range(m):
    t[i] = input()
    if t[i] in dict:
         dict[t[i]] -= 1
    else:
         dict[t[i]] = -1
    if dict[t[i]] < 0 :
         dict[t[i]] = 0
print(max(dict.values()))
Buggy code:
n=int(input())
s=[input() for i in range(n)]
m=int(input())
t=[input() for i in range(m)]
dict={}

for i in s:
  if i not in dict.keys():
    dict[i]=1
  else:
    dict[i]+=1
for j in t:
  if j in s:
    dict[j]-=1
print(max(dict.values()))

Fixed code:
n=int(input())
s=[input() for i in range(n)]
m=int(input())
t=[input() for i in range(m)]
dict={}

for i in s:
  if i not in dict.keys():
    dict[i]=1
  else:
    dict[i]+=1
for j in t:
  if j in s:
    dict[j]-=1
m=max(dict.values())
print(m if m>0 else "0")
Buggy code:
n = int(input())
s = [input() for i in range(n)]
m = int(input())
t = [input() for i in range(m)]
l =[0]*n
for j in range(n):
  a = s.count(s[j])
  b = s.count(s[j])
  l[j] = a-b
print(max(l))

Fixed code:
n = int(input())
s = [input() for i in range(n)]
m = int(input())
t = [input() for i in range(m)]
l =[0]*n
for j in range(n):
  a = s.count(s[j])
  b = t.count(s[j])
  l[j] = a-b
print(max(max(l),0))
Buggy code:
    s = list(input() for _ in range(int(input())))
    t = list(input() for _ in range(int(input())))
    print(max(0,max(s.count(S)-t.count(S) for S in set(s))))

Fixed code:
s = list(input() for _ in range(int(input())))
t = list(input() for _ in range(int(input())))
print(max(0,max(s.count(S)-t.count(S) for S in set(s))))
Buggy code:
n = int(input())


dic_blue = {}
for i in range(n):
    a = str(input())
    if a in dic_blue:
        dic_blue[a] += 1
    else:
        dic_blue[a] = 1

m = int(input())
dic_red = {}
for i in range(m):
    b = str(input())
    if b in dic_red:
        dic_red[b] += 1
    else:
        dic_red[b] = 1

total_list = []
for j in dic_blue.keys():
    total = 0
    if j in dic_red:
        total = dic_blue[j] - dic_red[j]
        total_list.append(total)
    else:
        total = dic_blue[j]
        total_list.append(total)

print(max(total_list))

Fixed code:
n = int(input())


dic_blue = {}
for i in range(n):
    a = str(input())
    if a in dic_blue:
        dic_blue[a] += 1
    else:
        dic_blue[a] = 1

m = int(input())
dic_red = {}
for i in range(m):
    b = str(input())
    if b in dic_red:
        dic_red[b] += 1
    else:
        dic_red[b] = 1

total_list = []
total_list.append(0)
for j in dic_blue.keys():
    total = 0
    if j in dic_red:
        total = dic_blue[j] - dic_red[j]
        total_list.append(total)
    else:
        total = dic_blue[j]
        total_list.append(total)

print(max(total_list))
Buggy code:
from sys import stdin
import sys

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

M = int(input())
T = [input() for i in range(M)]

words_count = {}
for i in range(N):
    words_count[S[i]] = words_count.get(S[i], 0) + 1

for i in range(M):
    words_count[T[i]] = words_count.get(T[i], 0) - 1

print(max(words_count.values()))


Fixed code:
from sys import stdin
import sys

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

M = int(input())
T = [input() for i in range(M)]

words_count = {}
for i in range(N):
    words_count[S[i]] = words_count.get(S[i], 0) + 1

for i in range(M):
    words_count[T[i]] = words_count.get(T[i], 0) - 1

print(max(0, max(words_count.values())))
Buggy code:
import collections

n = int(input())
aol = [input() for i in range(n)]
m = int(input())
akal = [input() for j in range(m)]

aod = collections.Counter(aol)
akad = collections.Counter(akal)

l = []
for key in aod:
    if (key in akad) == True:
        sa = aod[key] - akad[key]
        l.append(sa)
    else:
        l.append(aod[key])

print(max(l))

Fixed code:
import collections

n = int(input())
aol = [input() for i in range(n)]
m = int(input())
akal = [input() for j in range(m)]

aod = collections.Counter(aol)
akad = collections.Counter(akal)

l = [0]
for key in aod:
    if (key in akad) == True:
        sa = aod[key] - akad[key]
        l.append(sa)
    else:
        l.append(aod[key])

print(max(l))
Buggy code:
N = int(input())
s = [int(input()) for i in  range(N)]
M = int(input())
t = [int(input()) for i in  range(M)]
ans = 0
for word in set(s):
    ans = max(ans, s.count(word)-t.count(word))
print(ans)

Fixed code:
N = int(input())
s = [(input()) for i in range(N)]
M = int(input())
t = [(input()) for i in range(M)]
ans = 0
for word in set(s):
    ans = max(ans, s.count(word)-t.count(word))

print(ans)
Buggy code:
N = int(input())

p_names = []
p_count = []
for n in range(N):
    p_count.append(0)

for n in range(N):
    tmp = input()
    if tmp in p_names:
        index = p_names.index(tmp)
        p_count[index] += 1
    else:
        p_names.append(tmp)
        index = p_names.index(tmp)
        p_count[index] += 1
        
M = int(input())
for m in range(M):
    tmp = input()
    if tmp in p_names:
        index = p_names.index(tmp)
        p_count[index] -= 1
    else:
        continue

print(max(p_count))

Fixed code:
N = int(input())

p_names = []
p_count = []
for n in range(N):
    p_count.append(0)

for n in range(N):
    tmp = input()
    if tmp in p_names:
        index = p_names.index(tmp)
        p_count[index] += 1
    else:
        p_names.append(tmp)
        index = p_names.index(tmp)
        p_count[index] += 1
        
M = int(input())
for m in range(M):
    tmp = input()
    if tmp in p_names:
        index = p_names.index(tmp)
        p_count[index] -= 1
    else:
        continue

if max(p_count)>0:
    print(max(p_count))
else:
    print(0)
Buggy code:
N = int(input())
cards = {}
for n in range(N):
    s = input()
    if s in cards:
        cards[s] += 1
    else:
        cards[s] = 1

M = int(input())
for m in range(M):
    s = input()
    if s in cards:
        cards[s] -= 1
    else:
        cards[s] = 0

sorted_cards = list(reversed(sorted(cards.items(), key=lambda x:x[1])))
print(sorted_cards[0][1])



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

M = int(input())
for m in range(M):
    s = input()
    if s in cards and cards[s] > 0:
        cards[s] -= 1
    else:
        cards[s] = 0

sorted_cards = list(reversed(sorted(cards.items(), key=lambda x:x[1])))
print(sorted_cards[0][1])
Buggy code:
N = int(input())
S = [input() for x in range(N)]
M = int(input())
T = [input() for x in range(M)]

c = {}
for s in S:
    c[s] = c.get(s, 0) + 1
for t in T:
    c[t] = c.get(t, 0) - 1

print(max(c.values()))





Fixed code:
N = int(input())
S = [input() for x in range(N)]
M = int(input())
T = [input() for x in range(M)]

c = {"":0}
for s in S:
    c[s] = c.get(s, 0) + 1
for t in T:
    c[t] = c.get(t, 0) - 1

print(max(c.values()))
Buggy code:
N = int(input())
S = [input() for _ in range(N)]
M = int(input())
T = [input() for _ in range(M)]

tmp_S = {}
for s in S:
  if(s in tmp_S):
    tmp_S[s] += 1
  else:
    tmp_S[s] = 1
for t in T:
  if(t in tmp_S):
    tmp_S[t] -= 1
print(max(0, tmp_S.values()))

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

d = {}
for s in S:
  if(s not in d):
    d[s] = 1
  else:
    d[s] += 1
for t in T:
  if(t in d):
    d[t] -= 1
print(max(max(d.values()), 0))
Buggy code:
N = int(input())
S = {}
for i in range(N):
    s = input()
    if s not in S:
        S[s] = 1
        continue
    S[s] +=1
    

M = int(input())
T = {}
for i in range(M):
    t = input()
    if t not in T:
        T[t] = 1
        continue
    T[t] += 1

ans = 0
for key in S.keys():
    if key not in T:
        continue
    ans = max(ans, S[key] - T[key])
print(ans)

Fixed code:
N = int(input())
S = {}
for i in range(N):
    s = input()
    if s not in S:
        S[s] = 1
        continue
    S[s] +=1
    

M = int(input())
T = {}
for i in range(M):
    t = input()
    if t not in T:
        T[t] = 1
        continue
    T[t] += 1

ans = 0
for key in S.keys():
    if key not in T:
        ans = max(ans, S[key])
        continue
    ans = max(ans, S[key] - T[key])
print(ans)
Buggy code:
s = [input() for i in range(int(input()))]
t = [input() for i in range(int(input()))]
l = list(set(s))
  print(max(0, max(s.count(l[i] - t.count(l[i])) for i in l)))

Fixed code:
s = [input() for i in range(int(input()))]
t = [input() for i in range(int(input()))]
l = list(set(s))
print(max(0, max(s.count(l[i]) - t.count(l[i]) for i in range(len(l)))))
Buggy code:
n = int(input())
s = [input() for _ in range(n)]
m = int(input())
t = [input() for _ in range(m)]
num = {i:s.count(i) for i in set(s)}
out = [v-max(0,t.count(k)) for k, v in num.items()]
print(max(out))

Fixed code:
n = int(input())
s = [input() for _ in range(n)]
m = int(input())
t = [input() for _ in range(m)]
num = {i:s.count(i) for i in set(s)}
out = [v-max(0,t.count(k)) for k, v in num.items()]
print(max(max(out),0))
Buggy code:
n=int(input())
b=[input() for i in range(n)]
m=int(input())
r=[input() for i in range(m)]
ans=[]
for i in set(b):
    ans.append(b.count(i)-r.count(i))
print(max(ans))

Fixed code:
n=int(input())
b=[input() for i in range(n)]
m=int(input())
r=[input() for i in range(m)]

ans=[0]

for i in set(b):
    ans.append(b.count(i)-r.count(i))

print(max(ans))
Buggy code:
n=int(input())
dic={}
for _ in range(n):
  r=input()
  if r in dic:
    dic[r]+=1
  else:
    dic[r]=1

n=int(input())
for _ in range(n):
  r=input()
  if r in dic:
    dic[r]-=1
  else:
    dic[r]=1

print(max(dic.values()))

Fixed code:
n=int(input())
dic={}
for _ in range(n):
  r=input()
  if r in dic:
    dic[r]+=1
  else:
    dic[r]=1

n=int(input())
for _ in range(n):
  r=input()
  if r in dic:
    dic[r]-=1
  else:
    dic[r]=-1

print(max(max(dic.values()),0))
Buggy code:
import collections
n = int(input())
ls = []
for i in range(n):
    s = input()
    ls.append(s)
m = int(input())
lt = []
for i in range(m):
    t = input()
    lt.append(m)

ans = 0
for i in set(ls):
    sum = ls.count(i) - lt.count(i)
    if sum > ans:
        ans = sum
print(ans)

Fixed code:
import collections
n = int(input())
ls = []
for i in range(n):
    s = input()
    ls.append(s)
m = int(input())
lt = []
for i in range(m):
    t = input()
    lt.append(t)

ans = 0
for i in set(ls):
    sum = ls.count(i) - lt.count(i)
    if sum > ans:
        ans = sum
print(ans)
Buggy code:
d = dict()

def getv():
  M = int(input())
  for x in range(M):
    n = input()
    if d.get(n) is None:
      d[n] = 0
    d[n] += 1

getv(1)
getv(-1)

print(sorted(d, key=lambda x:x[1], reverse=True)[0])

Fixed code:
d = dict()

def getv(a):
  M = int(input())
  for x in range(M):
    n = input()
    if d.get(n) is None:
      d[n] = 0
    d[n] += a

getv(1)
getv(-1)

print(max(0,d[sorted(d, key=lambda x:d[x], reverse=True)[0]]))
Buggy code:
from collections import defaultdict
d = defaultdict(int)
for _ in range(int(input())):
    d[input()] += 1
for _ in range(int(input())):
    d[input()] -= 1
print(max(0, d.values()))


Fixed code:
from collections import defaultdict
d = defaultdict(int)
for _ in range(int(input())):
    d[input()] += 1
for _ in range(int(input())):
    d[input()] -= 1
print(max(0, max(d.values())))
Buggy code:
n = int(input())
a = [input() for i in range(n)]
m = int(input())
b = [input() for i in range(m)]
min = 0
for i in range(n):
    max = a.count(a[i])-b.count(a[i])
    if max >= min:
        min = max
    else:
        pass
print(max)

Fixed code:
n = int(input())
a = [input() for i in range(n)]
m = int(input())
b = [input() for i in range(m)]
min = 0
for i in range(n):
    max = a.count(a[i])-b.count(a[i])
    if max >= min:
        min = max
    else:
        pass
print(min)
Buggy code:
n = int(input())
s = [int(input()) for _ in range(n)]
m = int(input())
t = [int(input()) for _ in range(m)]

pointList = dict();

for temp in s:
  pointList[temp] = 0
for temp in t:
  pointList[temp] = 0
  
for temp in s:
  pointList[temp] += 1
for temp in t:
  pointList[temp] -= 1
  
ans = max(0, max(pointList.values()))

print(ans)

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

pointList = dict();

for temp in s:
  pointList[temp] = 0
for temp in t:
  pointList[temp] = 0
  
for temp in s:
  pointList[temp] += 1
for temp in t:
  pointList[temp] -= 1
  
ans = max(0, max(pointList.values()))

print(ans)
Buggy code:
n = int(input())
B = [input() for _ in range(n)]
m = int(input())
R = [input() for _ in range(m)]
L = list(set(B) | set(R))
dict = {key:0 for key in L}
for b in B:
    dict[b] += 1
for r in R:
    dict[r] -=1
print(max(dict.values()))

Fixed code:
n = int(input())
B = [input() for _ in range(n)]
m = int(input())
R = [input() for _ in range(m)]
L = list(set(B) | set(R))
dict = {key:0 for key in L}
for b in B:
    dict[b] += 1
for r in R:
    dict[r] -=1
dict.update({"AAA":0})
print(max(dict.values()))