qyliang/CodeNanoFix huggingface dataset:
Buggy code:
a = int(input())
b = [input() for i in range(a)]
c = int(input())
d = [input() for j in range(c)]
g = [0]*a
t = 0
for k in b:
    e = b.count(k)
    f = d.count(k)
    g[t] = e - f
    t +=1
print(max(g))

Fixed code:
a = int(input())
b = [input() for i in range(a)]
c = int(input())
d = [input() for j in range(c)]
g = [0]*a
t = 0
for k in b:
    e = b.count(k)
    f = d.count(k)
    g[t] = e - f
    t +=1
if max(g) < 0:
    print(0)
else:
    print(max(g))
Buggy code:
n = int(input())
S = [input() for i in range(n)]
m = int(input())
T = [input() for j in range(m)]

ANS = []
for i in range(len(S)):
  p = 0
  q = 0
  for j in range(len(S)):
    if S[i]== S[j]:
      p += 1
  for k in range(len(T)):
    if S[i] == T[k]:
      q += -1
  ANS.append(p+q)

print(S)

Fixed code:
n = int(input())
S = [input() for i in range(n)]
m = int(input())
T = [input() for j in range(m)]

ANS = []
for i in range(len(S)):
  p = 0
  q = 0
  for j in range(len(S)):
    if S[i]== S[j]:
      p += 1
  for k in range(len(T)):
    if S[i] == T[k]:
      q += -1
  ANS.append(p+q)

print(max(max(ANS),0))
Buggy code:
from collections import defaultdict
d = defaultdict(int)

n = int(input())
for _ in range(n):
    d[input()] += 1
m = int(input())
for _ in range(n):
    d[input()] -= 1
print(max(d.values()))

Fixed code:
from collections import defaultdict
d = defaultdict(int)

n = int(input())
for _ in range(n):
    d[input()] += 1
m = int(input())
for _ in range(m):
    d[input()] -= 1
print(max(0, max(d.values())))
Buggy code:
x=[]

n=int(input())
d1={}
for i in range(n):
  s=input()
  x.append(s)
  if s in d1:
    d1[s]+=1
  else:
    d1[s]=1
    
m=int(input())
d2={}
for i in range(m):
  t=input()
  x.append(t)
  if t in d2:
    d2[t]+=1
  else:
    d2[t]=1

ans=0
for s in x:
  cnt=0
  if s in d1:
    cnt+=d1[s]
  if s in d2:
    cnt+=d2[s]
  if ans<cnt:
    ans=cnt

print(ans)

Fixed code:
x=[]

n=int(input())
d1={}
for i in range(n):
  s=input()
  x.append(s)
  if s in d1:
    d1[s]+=1
  else:
    d1[s]=1
    
m=int(input())
d2={}
for i in range(m):
  t=input()
  x.append(t)
  if t in d2:
    d2[t]+=1
  else:
    d2[t]=1

ans=0
for s in x:
  cnt=0
  if s in d1:
    cnt+=d1[s]
  if s in d2:
    cnt-=d2[s]
  if ans<cnt:
    ans=cnt

print(ans)
Buggy code:
from collections import defaultdict
d = defaultdict(int)

n = int(input())
for _ in range(n):
    d[input()] += 1
m = int(input())
for _ in range(n):
    d[input()] -= 1
print(max(0, max(d.values())))

Fixed code:
from collections import defaultdict

d = defaultdict(int)
n = int(input())
for _ in range(n):
  key = input()
  d[key] += 1
m = int(input())
for _ in range(m):
  key = input()
  d[key] -= 1
print(max(max(d.values()), 0))
Buggy code:
N = int(input())
S = [""] * N
for i in range(N):
    S[i] = input()

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

S = {s: S.count(s) for s in S}
T = {t: T.count(t) for t in T}

ans = -float('inf')
for s in S:
    adv = S[s] - T.get(s, 0)
    ans = max(ans, adv)
print(ans)


Fixed code:
N = int(input())
S = [""] * N
for i in range(N):
    S[i] = input()

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

S = {s: S.count(s) for s in S}
T = {t: T.count(t) for t in T}

ans = 0
for s in S:
    adv = S[s] - T.get(s, 0)
    ans = max(ans, adv)
print(ans)
Buggy code:
import sys
from collections import deque

def solve():
    input = sys.stdin.readline
    N = int(input())
    point = dict()
    for _ in range(N):
        s = input().strip("\n")
        if s in point: point[s] += 1
        else: point[s] = 1
    M = int(input())
    for _ in range(M):
        s = input().strip("\n")
        if s in point: point[s] -= 1
        else: point[s] = -1
    
    Ans = -1 * 10 ** 20
    for key in point:
        Ans = max(Ans, point[key])
    print(Ans)


    return 0

if __name__ == "__main__":
    solve()

Fixed code:
import sys
from collections import deque

def solve():
    input = sys.stdin.readline
    N = int(input())
    point = dict()
    for _ in range(N):
        s = input().strip("\n")
        if s in point: point[s] += 1
        else: point[s] = 1
    M = int(input())
    for _ in range(M):
        s = input().strip("\n")
        if s in point: point[s] -= 1
        else: point[s] = -1
    
    Ans = 0
    for key in point:
        Ans = max(Ans, point[key])
    print(Ans)


    return 0

if __name__ == "__main__":
    solve()
Buggy code:
N = int(input())
s = [int(input()) for i in range(N)]
M = int(input())
t = [int(input()) for i in range(M)]

s1 = list(set(s))
a = []
for i in range (len(s1)):
    for j in range (N):
        if s1[i] == s[j]:
            a[i]+=1
for i in range (len(s1)):
    for j in range (M):
        if s1[i] == t[j]:
            a[i]-=1
print(max(a))

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

s1 = list(set(s))
a = [0 for i in range(101)]
for i in range (len(s1)):
    for j in range (N):
        if s1[i] == s[j]:
            a[i]+=1
for i in range (len(s1)):
    for j in range (M):
        if s1[i] == t[j]:
            a[i]-=1
print(max(a))
Buggy code:
n=int(input())
s=[input() for i in range(n)]
m=int(input())
t=[input() for j in range(m)]
l=list(set(s))

result=max(s.count(i)-t.count(i) for i in l)

print(result)

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

result=max(0,max(s.count(i)-t.count(i) for i in l))
print(result)
Buggy code:
n=int(input())
s=[input() for i in range(n)]
m=int(input())
t=[input() for i in range(m)]
lis=set(s)
print(max(0,max([s.count(l)-t.count(l) for l in lis]))

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

s.sort()
t.sort()

ans = 0
sset = set(s)

for si in sset:
    ans = max(ans, s.count(si)-t.coutn(si))
print(ans)

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

s.sort()
t.sort()

ans = 0
sset = set(s)

for si in sset:
    ans = max(ans, s.count(si)-t.count(si))
print(ans)
Buggy code:
from collections import defaultdict
n = int(input())
rec = defaultdict(int)
for i in range(n):
    a = input()
    rec[a] += 1
m = int(input())
for i in range(m):
    a = input()
    rec[a] -= 1

q = -100000
for k, v in rec.items():
    if q <= v:
        q = v

print(q)

Fixed code:
from collections import defaultdict
n = int(input())
rec = defaultdict(int)
for i in range(n):
    a = input()
    rec[a] += 1
m = int(input())
for i in range(m):
    a = input()
    rec[a] -= 1

q = -100000
for k, v in rec.items():
    if q <= v:
        q = v

print(max(q, 0))
Buggy code:
b_list = [int(input() for i in range(int(input())))]
r_list = [int(input() for i in range(int(input())))]

ans = 0 
for i in list(set(b_list)):
  if ans <= b_list.count(i) - r_list.count(i):
    ans = b_list.count(i) - r_list.count(i)
    
print(ans)

Fixed code:
b_list = [input() for i in range(int(input()))]
r_list = [input() for i in range(int(input()))]

ans = 0 
for i in list(set(b_list)):
  if ans <= b_list.count(i) - r_list.count(i):
    ans = b_list.count(i) - r_list.count(i)
    
print(int(ans))
Buggy code:
n = int(input())
ss = []
for i in range(n):
    ss.append(input())

m = int(input())
ts = []
for i in range(m):
    ts.append(input())

counter = dict()

for s in ss:
    counter.setdefault(s, 0)
    c = counter.get(s)
    counter[s] = c + 1
    
for t in ts:
    counter.setdefault(t, 0)
    c = counter.get(t)
    counter[t] =  c - 1
    
ans = max(counter.values()
if ans < 0:
    ans = 0
print(ans)


    


Fixed code:
n = int(input())
ss = []
for i in range(n):
    ss.append(input())

m = int(input())
ts = []
for i in range(m):
    ts.append(input())

counter = dict()

for s in ss:
    counter.setdefault(s, 0)
    c = counter.get(s)
    counter[s] = c + 1
    
for t in ts:
    counter.setdefault(t, 0)
    c = counter.get(t)
    counter[t] =  c - 1
    
ans = max(counter.values())
if ans < 0:
    ans = 0
print(ans)
Buggy code:
N=int(input())
n=[input() for _ in range(N)]
M=int(input())
m=[input() for _ in range(M)]
l=list(set(n))
ans=0
for i in range(len(l)):
  ans+=n.count(l[i])
  ans-=m.count(l[i])
print(ans)


Fixed code:
N=int(input())
n=[input() for _ in range(N)]
M=int(input())
m=[input() for _ in range(M)]
l=list(set(n))
ans=0
for i in range(len(l)):
  tmp=0
  tmp+=n.count(l[i])
  tmp-=m.count(l[i])
  ans=max(ans,tmp)
print(max(ans,0))
Buggy code:
#n=[input() for _ in range(int(input()))]
#m=[input() for _ in range(int(input()))]
n1=int(input())
n=[input() for i in range(n1)]
m1=int(input())
m=[input() for i in range(m1)]
print(n)
print(m)
l=list(set(n))
print(l)
print(max(0,max(n.count(l[i])-m.count(l[i]) for i in range(len(l)))))
#print(max(0,max(n.count(l[i])-m.count(l[i]) for i in range(len(l)))))

Fixed code:
#n=[input() for _ in range(int(input()))]
#m=[input() for _ in range(int(input()))]
n1=int(input())
n=[input() for i in range(n1)]
m1=int(input())
m=[input() for i in range(m1)]
#print(n)
#print(m)
l=list(set(n))
#print(l)
print(max(0,max(n.count(l[i])-m.count(l[i]) for i in range(len(l)))))
#print(max(0,max(n.count(l[i])-m.count(l[i]) for i in range(len(l)))))
Buggy code:
n = int(input())
s = [input() for i in range(n)]
m =  int(input())
t = [input() for i in range(m)]
cnt = {}
for word in s:
    if word in cnt: cnt[word] += 1
    else:cnt[word] = 1
for word2 in t:
    if word2 in cnt:cnt[word] -= 1
ls = [v for k,v in cnt.items()]
print(max(ls))


Fixed code:
n = int(input())
s = [input() for i in range(n)]
m =  int(input())
t = [input() for i in range(m)]
cnt = {}
for word in s:
    if word in cnt: cnt[word] += 1
    else:cnt[word] = 1
for word2 in t:
    if word2 in cnt:cnt[word2] -= 1
    else : cnt[word2]= -1
ls = [v for k,v in cnt.items()]
if max(ls) <0 :print(0)
else:print(max(ls))
Buggy code:
n = int(input())
s = [input() for _ in range(n)]
m = int(input())
t = [input() for _ in range(m)]

max_count = -1
flag = -1
for i in range(len(s)):

    #print(s[i],s.count(s[i]),t.count(s[i]))

    if s.count(s[i]) > t.count(s[i]):
        if s.count(s[i]) > max_count:
            max_count = s.count(s[i])
            flag = 1
if flag == -1:
    print(max_count)
else:
    print(0)

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

max_count = -9999
for i in range(len(s)):

    #print(s[i],s.count(s[i]),t.count(s[i]))

    if (s.count(s[i]) - t.count(s[i])) > max_count:
        max_count = s.count(s[i]) - t.count(s[i])

if max_count > 0:
    print(max_count)
else:
    print(0)
Buggy code:
n = int(input())
s = [input() for i in range(n)]
m = int(input())
t = [input() for i in range(m)]
point = 0
lst = list(set(s))

for i in range(len(lst)):
  tmp = s.count(lst[i]) - t.count(lst[i])
  if tmp > point:
    point = tmp

print(tmp)

Fixed code:
n = int(input())
s = [input() for i in range(n)]
m = int(input())
t = [input() for i in range(m)]
point = 0
lst = list(set(s))

for i in range(len(lst)):
  tmp = s.count(lst[i]) - t.count(lst[i])
  if tmp > point:
    point = tmp

print(point)
Buggy code:
n = int(input())
blue = []
red = []
score_list = []
for i in range(n):
    blue.append(input())
m = int(input())
for j in range(m):
    red.append(input())
for value in blue:
    score = 0
    for s in blue:
        if value == s:
            score += 1
    for t in red:
        if value == t:
            score -= 1
    if score not in score_list:
        score_list.append(score)
print(max(score_list))

Fixed code:
n = int(input())
blue = []
red = []
score_list = []
for i in range(n):
    blue.append(input())
m = int(input())
for j in range(m):
    red.append(input())
for value in blue:
    score = 0
    for s in blue:
        if value == s:
            score += 1
    for t in red:
        if value == t:
            score -= 1
    if score not in score_list:
        score_list.append(score)
if max(score_list) < 0:
    print(0)
else:
    print(max(score_list))
Buggy code:
import sys

nn=int(input())
s_list=[]
for i in range(nn):
	s_list.append(str(input()))
mm=int(input())
t_list=[]
for j in range(mm):
	t_list.append(str(input()))

count_list=[]
for k in range(nn):
	name = s_list[k]
	count=0
	for l in range(nn):
		if name==s_list[l]:
			count+=1
	for m in range(mm):
		if name==t_list[m]:
			count-=1
	count_list.append(count)

for n in range(mm):
	name = t_list[n]
	count=0
	for o in range(nn):
		if name==s_list[o]:
			count+=1
	for p in range(mm):
		if name==t_list[p]:
			count-=1
	count_list.append(count)
print(max(count_list))


Fixed code:
import sys

nn=int(input())
s_list=[]
for i in range(nn):
	s_list.append(str(input()))
mm=int(input())
t_list=[]
for j in range(mm):
	t_list.append(str(input()))

count_list=[]
for k in range(nn):
	name = s_list[k]
	count=0
	for l in range(nn):
		if name==s_list[l]:
			count+=1
	for m in range(mm):
		if name==t_list[m]:
			count-=1
	count_list.append(count)

for n in range(mm):
	name = t_list[n]
	count=0
	for o in range(nn):
		if name==s_list[o]:
			count+=1
	for p in range(mm):
		if name==t_list[p]:
			count-=1
	count_list.append(count)
max_value=max(count_list)
if max_value<=0:
	max_value=0
print(max_value)
Buggy code:
n=int(input())
s=[]
for i in range(n):
    s.append(str(input()))
m=int(input())
t=[]
for i in range(m):
    t.append(str(input()))

ln=s+t
ans=[]
for i in range(len(ln)):
    ctr=0
    test=ln[i]
    for k in range(n):
        if s[k]==test:
            ctr+=1
    for j in range(m):
        if t[j]==test:
            ctr-=1
    ans.append(ctr)

print(max(ans))    


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

ln=s+t
ans=[]
for i in range(len(ln)):
    ctr=0
    test=ln[i]
    for k in range(n):
        if s[k]==test:
            ctr+=1
    for j in range(m):
        if t[j]==test:
            ctr-=1
    ans.append(ctr)

if max(ans)>=0:
    print(max(ans))  
else:
    print(0)
Buggy code:
point = {}
for i in range(int(input())):
    name = input()
    if (name in point.keys()) == True:
        point[name] += 1
    else:
        point[name] = 1
for i in range(int(input())):
    name = input()
    if (name in point.keys()) == True:
        point[name] -= 1
    else:
        point[name] = -1
print(max(list(point.values())))

Fixed code:
point = {}
for i in range(int(input())):
    name = input()
    if (name in point.keys()) == True:
        point[name] += 1
    else:
        point[name] = 1
for i in range(int(input())):
    name = input()
    if (name in point.keys()) == True:
        point[name] -= 1
    else:
        point[name] = -1
result = max(list(point.values()))
if result > 0:
    print(result)
else:
    print(0)
Buggy code:
N = int(input())

words = []

blue_cards = {}
for i in range(N):
  s = input()
  if s in blue_cards:
    blue_cards[s] = blue_cards[s] + 1
  else:
    blue_cards[s] = 1
  if s not in words:
    words.append(s)

M = int(input())

red_cards= {}
for i in range(M):
  s = input()
  if s in red_cards:
    red_cards[s] = red_cards[s] + 1
  else:
    red_cards[s] = 1
  if s not in words:
    words.append(s)

print(blue_cards)
print(red_cards)

max_money = -100
for word in words:
  get_money, lose_money = 0, 0
  if word in blue_cards:
    get_money = blue_cards[word]
  if word in red_cards:
    lose_money = red_cards[word]
  print("{} {}".format(get_money, lose_money))
  max_money = max(max_money, get_money - lose_money)

print(max_money)


Fixed code:
N = int(input())

words = []

blue_cards = {}
for i in range(N):
  s = input()
  if s in blue_cards:
    blue_cards[s] = blue_cards[s] + 1
  else:
    blue_cards[s] = 1
  if s not in words:
    words.append(s)

M = int(input())

red_cards= {}
for i in range(M):
  s = input()
  if s in red_cards:
    red_cards[s] = red_cards[s] + 1
  else:
    red_cards[s] = 1
  if s not in words:
    words.append(s)

max_money = 0
for word in words:
  get_money, lose_money = 0, 0
  if word in blue_cards:
    get_money = blue_cards[word]
  if word in red_cards:
    lose_money = red_cards[word]
  max_money = max(max_money, get_money - lose_money)

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

max_point = -1000
for string in s:
    point = 0
    for i in s:
        if i == string:
            point += 1
    for j in t:
        if j == string:
            point -= 1
    if point > max_point:
        max_point = point
print(max_point)


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

max_point = 0
for string in s:
    point = 0
    for i in s:
        if i == string:
            point += 1
    for j in t:
        if j == string:
            point -= 1
    if point > max_point:
        max_point = point
print(max_point)
Buggy code:
N = int(input())

N_list = []
M_list = []
answer = -100

for i in range(N):
	s = input()
	N_list.append(s)

N = int(input())

for i in range(M):
	t = input()
	M_list.append(s)

for i in range(N):
	S = N_list[i]
	plus  = N_list.count(S)
	minus = M_list.count(S)
	if answer < (plus - minus):
		answer = (plus - minus)

print(answer)

Fixed code:
N = int(input())

N_list = []
M_list = []
answer = 0

for i in range(N):
	s = input()
	N_list.append(s)

M = int(input())

for i in range(M):
	t = input()
	M_list.append(t)

for i in range(N):
	S = N_list[i]
	plus  = N_list.count(S)
	minus = M_list.count(S)
	if answer < (plus - minus):
		answer = (plus - minus)

print(answer)
Buggy code:
n = int(input())
s = [input() for _ in range(n)]
m = int(input())
t = [input() for _ in range(m)]
c = 0 
maxl = 0
for i in set(s):
    c = s.count(i) - t.count(i)
    max1 = max(maxl, c)
print(maxl)

Fixed code:
n = int(input())
s = [input() for _ in range(n)]
m = int(input())
t = [input() for _ in range(m)]
c = 0 
maxl = 0
for i in set(s):
    c = s.count(i) - t.count(i)
    maxl = max(maxl, c)
print(maxl)
Buggy code:
n = int(input())
c = []
for i in range(n):
    c.append(input())
d = []
m = int(input())
for i in range(m):
    d.append(input())

scores = []
for i in c:
    score = 0
    for j in range(n):
        if i == c[j]:
            score += 1
    for j in range(m):
        if i == d[j]:
            score -= 1
    scores.append(score)
print(max(scores))

Fixed code:
n = int(input())
c = []
for i in range(n):
    c.append(input())
d = []
m = int(input())
for i in range(m):
    d.append(input())

scores = []
for i in c:
    score = 0
    for j in range(n):
        if i == c[j]:
            score += 1
    for j in range(m):
        if i == d[j]:
            score -= 1
    scores.append(score)
if max(scores) >= 0:
    print(max(scores))
else:
    print(0)
Buggy code:
n = int(input())
s = [int(input()) for _ in range(n)]
m = int(input())
t = [int(input()) for i in range(m)]

l = []
for i in range(n):
  S = s.count(i)
  T = t.count(i)
  l.append(S - T)
  
if max(l) < 0:
  print("0")
else:
  print(max(l))

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

l = []
for i in range(n):
  S = s.count(s[i])
  T = t.count(s[i])
  l.append(S - T)
  
if max(l) < 0:
  print(0)
else:
  print(max(l))
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:
N = int(input())
C = {}
for _ in range(N):
    a = input().strip()
    if a not in C:
        C[a] = 0
    C[a] += 1
M = int(input())
for _ in range(M):
    a = input().strip()
    if a not in C:
        C[a] = 0
    C[a] -= 1
cmax = -100
for a in C:
    cmax = max(cmax,C[a])
print(cmax)

Fixed code:
N = int(input())
C = {}
for _ in range(N):
    a = input().strip()
    if a not in C:
        C[a] = 0
    C[a] += 1
M = int(input())
for _ in range(M):
    a = input().strip()
    if a not in C:
        C[a] = 0
    C[a] -= 1
cmax = -100
for a in C:
    cmax = max(cmax,C[a])
print(max(0,cmax))
Buggy code:
n = [input() for _ in range(int(input()))]
m = [input() for _ in range(int(input()))]

l = n.copy()
l.extend(m)
l = set(l)

prize = [n.count(cand_i) - m.count(cand_i) for cand_i in l]
print(max(prize))

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

l = n.copy()
l.extend(m)
l = set(l)

prize = [n.count(cand_i) - m.count(cand_i) for cand_i in l]
print(max(0, max(prize)))
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_cnt = Counter(S)
S_key = S_cnt.keys()
T_cnt = Counter(T)

for key,v in T_cnt.items():
    if not key in S_key:
        continue
    S_cnt[key] -= v
print(max(S_cnt.values()))

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_cnt = Counter(S)
S_key = S_cnt.keys()
T_cnt = Counter(T)

for key,v in T_cnt.items():
    if not key in S_key:
        continue
    S_cnt[key] -= v
print(max(max(S_cnt.values()), 0))
Buggy code:
n = int(input())
sn = [input() for _ in range(n)]
m = int(input())
sm = [input() for _ in range(m)]

List = []
for i in range(len(list(set(n)))):
    List.append(n.count(list(set(n))[i]) - m.count(list(set(n))[i]))
    
print(max(List))

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

List = []
for i in range(len(list(set(sn)))):
    List.append(sn.count(list(set(sn))[i]) - sm.count(list(set(sn))[i]))
    
print(max(max(List), 0))
Buggy code:
import collections
n=int(input())
s=[str(input()) for i in range(n)]
m=int(input())
t=[str(input()) for i in range(m)]
s_s=set(s)
t_s=set(t)
#import pdb;pdb.set_trace()
s_c=collections.Counter(s)
t_c=collections.Counter(t)
a_l=[]
for i in s_c.keys():
    a_l.append(s_c[i]-t_c[i])
if max(a_l)>0:
    ans=max(a_l)
else:
    ans=0
print(ans)
import pdb;pdb.set_trace()


Fixed code:
import collections
n=int(input())
s=[str(input()) for i in range(n)]
m=int(input())
t=[str(input()) for i in range(m)]
s_s=set(s)
t_s=set(t)
#import pdb;pdb.set_trace()
s_c=collections.Counter(s)
t_c=collections.Counter(t)
a_l=[]
for i in s_c.keys():
    a_l.append(s_c[i]-t_c[i])
if max(a_l)>0:
    ans=max(a_l)
else:
    ans=0
print(ans)
Buggy code:
n,s=open(0).read().split();n=int(n);print(max(0,*[s[:n].count(i)-s[n:].count(i)for i in s[:n]]))

Fixed code:
n,*s=open(0).read().split();n=int(n);print(max(0,*[s[:n].count(i)-s[n:].count(i)for i in s[:n]]))
Buggy code:
I=lambda:[input()for _ in[0]*int(input())];s=I();t=I();print(max(s.count(i)-t.count(i)for i in set(s)))

Fixed code:
I=lambda:[input()for _ in[0]*int(input())];s=I();t=I();print(max([0]+[s.count(i)-t.count(i)for i in set(s)]))
Buggy code:
n = int(input())
s = [input() for i in range(n)]
m = int(input())
t = [input() for i in range(m)]

counter = dict()
for i in s:
  counter[i] = counter.get(i, 0) + 1
for i in t:
  counter[i] = counter.get(i, 0) - 1

print(max(counter.values()))

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

counter = dict()
for i in s:
  counter[i] = counter.get(i, 0) + 1
for i in t:
  counter[i] = counter.get(i, 0) - 1

print(max(max(counter.values()), 0))