qyliang/CodeNanoFix huggingface dataset:
Buggy code:
n=int(input())
l=[input() for i in range(n)]
import collections
c=collections.Counter(l)
ll=c.most_common()
tmp=ll[0][1]
ans=[]
for i,j in ll:
    if tmp==j:
        ans.append(i)
    else:
        ans.sort()
        print('\n'.join(map(str,ans)))
        print(1)
        break
ans.sort()
print('\n'.join(map(str,ans)))



Fixed code:
n=int(input())
l=[input() for i in range(n)]
import collections
c=collections.Counter(l)
ll=c.most_common()
tmp=ll[0][1]
ans=[]
for i,j in ll:
    if tmp==j:
        ans.append(i)
    else:
        break
ans.sort()
print('\n'.join(map(str,ans)))
Buggy code:
n = int(input())
lis = []
lis2 = {}
lis3 = []
for _ in range(n):
  lis.append(input())

for w in lis:
  if w not in lis2.keys():
    lis2[w] = 1
  else:
    lis2[w] += 1

ma = max(lis2.values())

for k, v in lis2.items():
  if v == ma:
    lis3.append(k)

for a in lis3:
  print(a)

Fixed code:
n = int(input())
lis = []
lis2 = {}
lis3 = []
for _ in range(n):
  lis.append(input())

for w in lis:
  if w not in lis2.keys():
    lis2[w] = 1
  else:
    lis2[w] += 1

ma = max(lis2.values())

for k, v in lis2.items():
  if v == ma:
    lis3.append(k)

lis3.sort()

for a in lis3:
  print(a)
Buggy code:
n = int(input())
s = ["" for i in range(n)]
for j in range(n):
    s[j] = str(input())
s.sort()
count = [0 for _ in range(len(set(s)))]
l = 0
name = list(sorted(set(s)))
for k in range(n-1):
    count[l] += 1
    if(s[k] != s[k+1]):
        l += 1
if(s[-1] == s[-2]):
    count[-1] += 1
else:
    count.append(1)

m_v = max(count)
ansnum = []

for h in range(len(count)):
    if(count[h] == m_v):
        ansnum.append(name[h])

print(sorted(ansnum))

Fixed code:
n = int(input())
s = ["" for i in range(n)]
for j in range(n):
    s[j] = str(input())
s.sort()
count = [0 for _ in range(len(set(s)))]
l = 0
name = list(sorted(set(s)))
for k in range(n-1):
    count[l] += 1
    if(s[k] != s[k+1]):
        l += 1

count[-1] += 1

m_v = max(count)
ansnum = []

for h in range(len(count)):
    if(count[h] == m_v):
        ansnum.append(name[h])

print("\n".join(sorted(ansnum)))
Buggy code:
N = int(input())
S = []

for i in range(N):
    tmp = input()
    S.append(tmp)
S.sort()
if N == 1:
    print(S[0])
    exit()
ans = []
SS = []
count = 1
print(S)
for i in range(N-1):
    if i == N-2:
        if S[i] == S[i+1]:
            count += 1
            ans.append(count)
            SS.append(S[i])
        else:
            ans.append(count)
            SS.append(S[i])
            ans.append(1)
            SS.append(S[i+1])
    elif S[i] == S[i+1]:
        count += 1
    else:
        ans.append(count)
        SS.append(S[i])
        count = 1

m = max(ans)

for i in range(len(SS)):
    if ans[i] == m:
        print(SS[i])

Fixed code:
N = int(input())
S = []

for i in range(N):
    tmp = input()
    S.append(tmp)
S.sort()
if N == 1:
    print(S[0])
    exit()
ans = []
SS = []
count = 1

for i in range(N-1):
    if i == N-2:
        if S[i] == S[i+1]:
            count += 1
            ans.append(count)
            SS.append(S[i])
        else:
            ans.append(count)
            SS.append(S[i])
            ans.append(1)
            SS.append(S[i+1])
    elif S[i] == S[i+1]:
        count += 1
    else:
        ans.append(count)
        SS.append(S[i])
        count = 1

m = max(ans)

for i in range(len(SS)):
    if ans[i] == m:
        print(SS[i])
Buggy code:
N = int(input())
cnt_list = {}
for i in range(N):
  S = input()
  if S in cnt_list:
    cnt_list[S] += 1
  else:
    cnt_list[S] = 0

max_cnt = max(cnt_list.values())
res_list = []

for a in cnt_list.items():
  if a[1] == max_cnt:
    res_list.append(a[0])

res_list.sort()
print(res_list)

Fixed code:
N = int(input())
cnt_list = {}
for i in range(N):
  S = input()
  if S in cnt_list:
    cnt_list[S] += 1
  else:
    cnt_list[S] = 0

max_cnt = max(cnt_list.values())
res_list = []

for a in cnt_list.items():
  if a[1] == max_cnt:
    res_list.append(a[0])

res_list.sort()

for res in res_list:
  print(res)
Buggy code:
N = int(input())
S = [input() for _ in range(N)]
S.sort()

res = 0
cnt = 1
for i in range(N-1):
    if S[i] == S[i+1]:
        cnt+=1
    else:
        res = max(res,cnt)
        cnt = 1

res = max(res,cnt)
cnt = 1
ans = []
for i in range(N-1):
    if S[i] == S[i+1]:
        cnt+=1
    else:
        if res == cnt:
            ans.append(S[i])
            cnt = 1

if cnt == res:
    ans.append(S[i+1])
for i in range(len(ans)):
    print(ans[i])


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

res = 0
cnt = 1
for i in range(N-1):
    if S[i] == S[i+1]:
        cnt+=1
    else:
        res = max(res,cnt)
        cnt = 1

res = max(res,cnt)

cnt = 1
ans = []
for i in range(N-1):
    if S[i] == S[i+1]:
        cnt+=1
    else:
        if res == cnt:
            ans.append(S[i])
        cnt = 1

if cnt == res:
    ans.append(S[i+1])

for i in range(len(ans)):
    print(ans[i])
Buggy code:
N = int(input())
S = []
for _ in range(N):
    S.append(input())

import sys
from collections import Counter

count_dict = Counter(S)
most_freq = count_dict.most_common(1)[0][1]

print(most_freq)

for word, freq in sorted(count_dict.items(), key=lambda x: -x[1]):
    if freq == most_freq:
        print(word)

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

import sys
from collections import Counter

count_dict = Counter(S)
most_freq = count_dict.most_common(1)[0][1]

words = []

for word, freq in sorted(count_dict.items(), key=lambda x: -x[1]):
    if freq == most_freq:
        words.append(word)

for word in sorted(words):
    print(word)
Buggy code:
from collections import Counter
N = int(input())
 
A=[]
for i in range(N):
    A.append(input())

B = Counter(A)

saidai = max(B.values())

C=[]
for i, j in B.items():
    if j == saidai:
        C.append(i)
C.sort()
print(*C, sep="")

Fixed code:
from collections import Counter
N = int(input())
 
A=[]
for i in range(N):
    A.append(input())

B = Counter(A)

saidai = max(B.values())

C=[]
for i, j in B.items():
    if j == saidai:
        C.append(i)
C.sort()
for i in C:
    print(i)
Buggy code:
from collections import Counter
n = int(input())
S = ['_']*n
for i in range(n):
    S[i] = input()
cS = Counter(S).most_common()
mx = cS[0][1]
ans = []
for i in range(n):
    if cS[i][1]==mx:
        ans.append(cS[i][0])
    else:
        break
ans = sorted(ans)
for i in range(len(ans)):
    print(ans[i])

Fixed code:
from collections import Counter
n = int(input())
S = ['_']*n
for i in range(n):
    S[i] = input()
cS = Counter(S).most_common()
mx = cS[0][1]
ans = []
for i in range(len(cS)):
    if cS[i][1]==mx:
        ans.append(cS[i][0])
    else:
        break
ans = sorted(ans)
for i in range(len(ans)):
    print(ans[i])
Buggy code:
import collections
n=int(input())
s=[]
for _ in range(n):
    s.append(str(input()))
ans=collections.Counter(s)
a=max(ans.values())
ans=[i for i,k in ans.items() if a==k]
print(*ans.sort(),sep="\n")

Fixed code:
import collections
n=int(input())
s=[]
for _ in range(n):
    s.append(str(input()))
ans=collections.Counter(s)
a=max(ans.values())
ans=[i for i,k in ans.items() if a==k]
print(*sorted(ans),sep="\n")
Buggy code:
N = int(input())
S = []
for i in range(N):
    S.append(input())
S.sort()
MAX = 0
cnt = 0
WORD = []
for i in range(N):
    if i == 0:
        cnt = 1
        MAX = 1
        WORD.append(S[i])
    elif S[i] == S[i-1]:
        cnt+=1
        if cnt == MAX:
            WORD.append(S[i])
        if cnt > MAX:
            MAX = cnt
            WORD.clear()
            WORD.append(S[i])
    else:
        cnt = 1

for ans in WORD:
    print(ans)

Fixed code:
N = int(input())
S = []
for i in range(N):
    S.append(input())
S.sort()
MAX = 0
cnt = 0
WORD = []
for i in range(N):
    if i == 0:
        cnt = 1
        MAX = 1
        WORD.append(S[i])
    elif S[i] == S[i-1]:
        cnt+=1
        if cnt == MAX:
            WORD.append(S[i])
        if cnt > MAX:
            MAX = cnt
            WORD.clear()
            WORD.append(S[i])
    else:
        cnt = 1
        if cnt == MAX:
            WORD.append(S[i])

for ans in WORD:
    print(ans)
Buggy code:
n = int(input())
dic = {}
m = 0
for i in range(n):
  s = input()
  if s in dic:
    dic[s] += 1
    m = max(m, dic[s])
  else:
    dic[s] = 1
    m = max(m, dic[s])
ans = []
for s in dic:
  if dic[s] == m:
    ans.append(s)
print('\n'.join(ans))

Fixed code:
n = int(input())
dic = {}
m = 0
for i in range(n):
  s = input()
  if s in dic:
    dic[s] += 1
    m = max(m, dic[s])
  else:
    dic[s] = 1
    m = max(m, dic[s])
ans = []
for s in dic:
  if dic[s] == m:
    ans.append(s)
print('\n'.join(sorted(ans)))
Buggy code:
N = int(input())
S = list()

for _ in range(N):
    S.append(input())
S_set = set(S)
S_dict = dict()
for s in S_set:
    S_dict[s] = 0

for val in S:
    S_dict[val] += 1
max_num = max(S_dict.values())
ans = list()
for k, v in S_dict.items():
    if v == max_num:
        ans.append(k)
sorted(ans)
for res in ans:
    for _ in range(max_num):
        print(res)


Fixed code:
N = int(input())
S = list()

for _ in range(N):
    S.append(input())
S_set = set(S)
S_dict = dict()
for s in S_set:
    S_dict[s] = 0

for val in S:
    S_dict[val] += 1
max_num = max(S_dict.values())
ans = list()
for k, v in S_dict.items():
    if v == max_num:
        ans.append(k)
ans = sorted(ans)
for res in ans:
    print(res)
Buggy code:
import numpy as np

n = int(input())
s_list = [input() for i in range(n)]

new_dict = {}
for s in s_list:
    if s not in new_dict.keys():
        new_dict[s] = 1
    else:
        new_dict[s] += 1
    
values = []
keys = []    
for key in new_dict.keys():
    values.append(new_dict[key])
    keys.append(key)
    
values = np.array(values)
keys = np.array(keys)

max_index = values == np.max(values)
keys = keys[max_index].tolist()

for key in keys:
    print(key)

Fixed code:
import numpy as np

n = int(input())
s_list = [input() for i in range(n)]

new_dict = {}
for s in s_list:
    if s not in new_dict.keys():
        new_dict[s] = 1
    else:
        new_dict[s] += 1
    
values = []
keys = []    
for key in new_dict.keys():
    values.append(new_dict[key])
    keys.append(key)
    
values = np.array(values)
keys = np.array(keys)

max_index = values == np.max(values)
keys = keys[max_index].tolist()
keys = sorted(keys)

for key in keys:
    print(key)
Buggy code:
N = int(input())
dicta = {}
for i in range(N):
    word = input()
    dicta.setdefault(word, 0)
    dicta[word] += 1
word_c = list(dicta.items())
word_c.sort(key=lambda tup: tup[1], reverse=True)
max_len_word = [word_c[0][0]]
for j in range(1,N):
    if word_c[j][1] == word_c[0][1]:
        max_len_word.append(word_c[j][0])
    else:
        break
max_len_word.sort()
for word in max_len_word:
    print(word)

Fixed code:
N = int(input())
dicta = {}
for i in range(N):
    word = input()
    dicta.setdefault(word, 0)
    dicta[word] += 1
word_c = list(dicta.items())
word_c.sort(key=lambda tup: tup[1], reverse=True)
max_len_word = [word_c[0][0]]
for j in range(1,len(word_c)):
    if word_c[j][1] == word_c[0][1]:
        max_len_word.append(word_c[j][0])
    else:
        break
max_len_word.sort()
for word in max_len_word:
    print(word)
Buggy code:
n = int(input())
dic = {}
for i in range(n):
    a = input()
    if a in dic:
        dic[a] += 1
    else:
        dic[a] = 0

l = sorted(dic.items(), key=lambda x: x[1], reverse=True)
num = l[0][1]
for i in range(len(l)):
    if l[i][1] == num:
        print(l[i][0])
    else:
        break

Fixed code:
n = int(input())
dic = {}
for i in range(n):
    a = input()
    if a in dic:
        dic[a] += 1
    else:
        dic[a] = 0

l = sorted(dic.items(), key=lambda x: x[1], reverse=True)
num = l[0][1]
ok = []
for i in range(len(l)):
    if l[i][1] == num:
        ok.append(l[i][0])
    else:
        break
ok.sort()
for i in ok:
    print(i)
Buggy code:
N = int(input())
Ss = {}
for _ in range(N):
  s = input()
  if s in Ss:
    Ss[s] += 1
  else:
    Ss[s] = 1

max_value = max(Ss.values())  # maximum value
max_keys = [k for k, v in Ss.items() if v == max_value]
for k in max_keys:
  print(k)


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

max_value = max(Ss.values())  # maximum value
max_keys = [k for k, v in Ss.items() if v == max_value]
for k in sorted(max_keys):
  print(k)
Buggy code:
n = int(input())
dict1 = {}

for _ in range(n):
    s = input()
    if s in dict1:
        dict1[s] += 1
    else:
        dict1[s] = 1

dict_sorted = sorted(dict1, key = lambda x: x[0])
dict_sorted.sort(key = lambda x: x[1], reverse = True)

max1 = dict_sorted[0][1]

for i in range(len(dict_sorted)):
    if dict_sorted[i][1] == max1:
        print(dict_sorted[i][0])
    else:
        break


Fixed code:
n = int(input())
dict1 = {}

for _ in range(n):
    s = input()
    if s in dict1:
        dict1[s] += 1
    else:
        dict1[s] = 1

dict_sorted = sorted(list(dict1.items()), key = lambda x: x[0])
dict_sorted.sort(key = lambda x: x[1], reverse = True)

max1 = dict_sorted[0][1]

for i in range(len(dict_sorted)):
    if dict_sorted[i][1] == max1:
        print(dict_sorted[i][0])
    else:
        break
Buggy code:
import collections
n = int(input())
s = []
for i in range(n):
    s.append(input())
    
dic = collections.Counter(s)
dic = dic.most_common()

ans = [dic[0][0]]

for i in range(n):
    if dic[i][1] == dic[i+1][1]:
        ans.append(dic[i+1][0])
    else:
        break
        
ans = sorted(ans)

for i in range(len(ans)):
    print(ans[i])

Fixed code:
import collections
n = int(input())
s = []
for i in range(n):
    s.append(input())
    
dic = collections.Counter(s)
dic = dic.most_common()

ans = [dic[0][0]]

for i in range(len(dic)-1):
    if dic[i][1] == dic[i+1][1]:
        ans.append(dic[i+1][0])
    else:
        break
        
ans = sorted(ans)

for i in range(len(ans)):
    print(ans[i])
Buggy code:
import collections
S_print = []
N=int(input())
S=[input() for i in range(N)]
S = collections.Counter(S)

S_common = S.most_common()
#print(S_common)

for i in range(len(S_common)):
	if S_common[0][1] == S_common[i][1]:
		S_print.append(S_common[i][0])

for i in range(len(sorted(S_print))):
	print(S_print[i])

Fixed code:
import collections
S_print = []
N=int(input())
S=[input() for i in range(N)]
S = collections.Counter(S)

S_common = S.most_common()

for i in range(len(S_common)):
	if S_common[0][1] == S_common[i][1]:
		S_print.append(S_common[i][0])

S_print_new = sorted(S_print)
#print(S_print_new)
for i in range(len(S_print_new)):
	print(S_print_new[i])
Buggy code:
 int(input())
d = dict()
 
for i in range(n):
    s = input()
    if s in d:
        d[s] += 1
    else:
        d[s] = 1
 
M = max(d.values())
 
ans_list = []
for k,v in d.items():
    if v == M:
        ans_list.append(k)
 
ans_list.sort()
for i in ans_list:
    print(i)

Fixed code:
n = int(input())
d = dict()

for i in range(n):
    s = input()
    if s in d:
        d[s] += 1
    else:
        d[s] = 1

M = max(d.values())

ans_list = []
for k,v in d.items():
    if v == M:
        ans_list.append(k)

ans_list.sort()
for i in ans_list:
    print(i)
Buggy code:
N = int(input())

d_count = {}
for i in range(N):
    S = str(input())
    d_count.setdefault(S, 0)
    d_count[S] = d_count[S] + 1
print(d_count)

max = 0
maxlist = []
for S in d_count:
    if(max < d_count[S] ):
        max = d_count[S]
        maxlist = [S]
    if(max == d_count[S]):
        maxlist.append(S)

maxlist_set = list(set(maxlist))
maxlist_set.sort()
for a in maxlist_set:
    print(a)

Fixed code:
N = int(input())

d_count = {}
for i in range(N):
    S = str(input())
    d_count.setdefault(S, 0)
    d_count[S] = d_count[S] + 1

max = 0
maxlist = []
for S in d_count:
    if(max < d_count[S] ):
        max = d_count[S]
        maxlist = [S]
    if(max == d_count[S]):
        maxlist.append(S)

maxlist_set = list(set(maxlist))
maxlist_set.sort()
for a in maxlist_set:
    print(a)
Buggy code:
N=int(input())
s={}
maxs=0
for i in range(N):
  S=input()
  if S not in s:
    s[S]=0
  else:
    s[S]+=1
    maxs=max(maxs,s[S])
s2=sorted(s.items(), key=lambda x:x[0])
ans=[]
for S in s:
  if s[S]==maxs:
    ans.append(S)
for A in ans:
  print(A)

Fixed code:
N=int(input())
s={}
maxs=0
for i in range(N):
  S=input()
  if S not in s:
    s[S]=0
  else:
    s[S]+=1
    maxs=max(maxs,s[S])
s=sorted(s.items(), key=lambda x:x[0])

ans= [S for S, i in s if i == maxs]
for A in ans:
  print(A)
Buggy code:
n = int(input())
d = {}
for i in range(n):
    s = input()
    d[s] = d[s]+1 if (s in d) else 1
d_sorted = sorted(d.items(), key=lambda x:x[1], reverse=True)
m = d_sorted[0][1]
result = []
for i in range(n):
    if d_sorted[i][1]!=m:
        break
    result.append(d_sorted[i][0])
print(*sorted(result), sep='\n')

Fixed code:
n = int(input())
d = {}
for i in range(n):
    s = input()
    d[s] = d[s]+1 if (s in d) else 1
d_sorted = sorted(d.items(), key=lambda x:x[1], reverse=True)
m = d_sorted[0][1]
result = []
for i in d_sorted:
    if i[1]!=m:
        break
    result.append(i[0])
print(*sorted(result), sep='\n')
Buggy code:
from collections import Counter

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

c = Counter(s)
ans_number = c.most_common()[0][1]

s_max = []
for i in range(len(c)):
  if c.most_common()[i][1] == ans_number:
    s_max.append(c.most_common()[i][0])

for i in range(len(s_max)):
  print(s_max[i])

Fixed code:
from collections import Counter

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

c = Counter(s)
c = c.most_common()
ans_number = c[0][1]
c.sort()

for i in range(len(c)):
  if c[i][1] == ans_number:
    print(c[i][0])
Buggy code:
import collections
N = int(input())
S = [input() for _ in range(N)]

if len(S) == len(set(S)):
  ans = S
else:
  ans = []
  c = collections.Counter(S)
  c_common = c.most_common()
  max_vote = c_common[0][1]
  for k in range(len(S)):
    if c_common[k][1]== max_vote:
      ans.append(c_common[k][0])
    else:
      break
[print(a) for a in sorted(ans)]

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

if len(S) == len(set(S)):
  ans = S
else:
  ans = []
  c = collections.Counter(S)
  c_common = c.most_common()
  max_vote = c_common[0][1]
  for k in range(len(set(S))):
    if c_common[k][1]== max_vote:
      ans.append(c_common[k][0])
    else:
      break
[print(a) for a in sorted(ans)]
Buggy code:
l = [input() for i in range(n)]
l.sort()
i = 0
count = 1
ans = []
max = 1
while i < n-1:
  if l[i] == l[i+1]:
    count += 1
    i += 1
    if count >= max:
      max = count
    if i == n-1:
      ans.append([l[n-1], count])

  else:
      ans.append([l[i],count])
      count = 1
      i += 1

for i in ans:
  if i[1] == max:
    print(i[0])





Fixed code:
n = int(input())
l = [str(input()) for i in range(n)]
l.sort()
i = 0
count = 1
ans = []
max = 1
while i < n-1:
  if l[i] == l[i+1]:
    count += 1
    i += 1
    if count >= max:
      max = count
    if i == n-1:
      ans.append([l[n-1], count])

  else:
      ans.append([l[i],count])
      count = 1
      i += 1

if max == 1:
  ans.append([l[n-1], 1])
      
for i in ans:
  if i[1] == max:
    print(i[0])
Buggy code:
import collections
a = int(input())
l = []
for i in range(a):
    l.append(input())
counted = collections.Counter(l)
 
m = max(counted.values())
 
chars = [key for key, value in counted.items()
             if value == m].sort()
chars.sort()

for i in chars:
    print(i)

Fixed code:
import collections
a = int(input())
l = []
for i in range(a):
    l.append(input())
counted = collections.Counter(l)
 
m = max(counted.values())
 
chars = [key for key, value in counted.items()
             if value == m]
chars.sort()
 
for i in chars:
    print(i)
Buggy code:
N = int(input())
S = {}
for i in range(N):
  s = input()
  if s in S: S[s] += 1
  else: S[s] = 1  
sorted_S = sorted(S.items(), reverse = True, key=lambda x: x[1])  
for word, value in sorted_S:
  if value == sorted_S[0][1]: print(word)



Fixed code:
N = int(input())
S = {}
for i in range(N):
  s = input()
  if s in S: S[s] += 1
  else: S[s] = 1  
sorted_S = sorted(S.items(), reverse = True, key=lambda x: x[1]) 
ans = []
for word, value in sorted_S:
  if value == sorted_S[0][1]: ans.append(word)
ans.sort()
for i in ans:
  print(i)
Buggy code:
N = int(input())
words = []
for _ in range(N):
    words.append(input())
count_table = {}
for w in words:
    if w in count_table:
        count_table[w] += 1
    else:
        count_table[w] = 0
best_count = 0
for w in count_table:
    if best_count < count_table[w]:
        best_count = count_table[w]
        best_words = [w]
    elif best_count == count_table[w]:
        best_words.append(w)
for w in sorted(best_words):
    print(w)

Fixed code:
N = int(input())
words = []
for _ in range(N):
    words.append(input())
count_table = {}
for w in words:
    if w in count_table:
        count_table[w] += 1
    else:
        count_table[w] = 0
best_count = 0
best_words = []
for w in count_table:
    if best_count < count_table[w]:
        best_count = count_table[w]
        best_words = [w]
    elif best_count == count_table[w]:
        best_words.append(w)
for w in sorted(best_words):
    print(w)
Buggy code:

import collections

N = int(input())
list_1 = [input() for i in range(N)]
list_2 = collections.Counter(list_1)

for i in list_2:
    print(i)

m = max(list_2.values())

ans = [k for k in list_2 if list_2[k] == m]

for l in sorted(ans):
    print(l)

Fixed code:
import collections

N = int(input())
list_1 = [input() for i in range(N)]
list_2 = collections.Counter(list_1)

m = max(list_2.values())

ans = [k for k in list_2 if list_2[k] == m]

for l in sorted(ans):
    print(l)
Buggy code:
import collections
n = int(input())
s = [input() for i in range(n)]
p = collections.Counter(s)
res = sorted(p.items(), key=lambda x: x[1],reverse = True)

keys = []
if(len(s) == len(set(s))):
  print(sorted(s))
  
#keys = [i for i,m in p.items() if m == p.values()]
for i,m in res:
  if(m == max(p.values())):
    keys.append(i)
  else:
    break
keys=sorted(keys)
for i in range(len(keys)):
  print(keys[i])

Fixed code:
import collections
n = int(input())
s = [input() for i in range(n)]
p = collections.Counter(s)
res = sorted(p.items(), key=lambda x: x[1],reverse = True)
 
keys = []
#keys = [i for i,m in p.items() if m == p.values()]
u = max(p.values())
for i,m in res:
  if(m == u):
    keys.append(i)
  else:
    break
keys=sorted(keys)
for i in range(len(keys)):
  print(keys[i])
Buggy code:
N = int(input())

A = [input() for i in range(N)]

dic = {}

for i in A:
        if i not in dic:
                dic[i] = 1
        else:
                dic[i] += 1

de = 0

ans_list = []
#dic2 =　sorted(dic.values(), reverse=True)

for k, v in sorted(dic.items(), key=lambda x: x[1], reverse = True):
        if v != de and de !=0:
                exit()
        else:
                ans_list.append(k)
        de = v

ans_list_n = sorted(ans_list)

for i in ans_list_n:
        print(i)

Fixed code:
N = int(input())

A = [input() for i in range(N)]

dic = {}

for i in A:
        if i not in dic:
                dic[i] = 1
        else:
                dic[i] += 1

de = 0

ans_list = []
#dic2 =　sorted(dic.values(), reverse=True)

for k, v in sorted(dic.items(), key=lambda x: x[1], reverse = True):
        if v != de and de !=0:
                break
        else:
                ans_list.append(k)
        de = v

ans_list_n = sorted(ans_list)


for i in ans_list_n:
        print(i)
Buggy code:
N = int(input())

d = {}

for i in range(N):
    s = input()
    if s in d:
        d[s] = d[s] + 1
    else:
        d[s] = 1

hoge = max(d.values)

max_kv_list = [kv[0] for kv in d.items() if kv[1] == hoge]

max_kv_list = sorted(max_kv_list)
for ans in max_kv_list:
    print(ans)

Fixed code:
N = int(input())

d = {}

for i in range(N):
    s = input()
    if s in d:
        d[s] = d[s] + 1
    else:
        d[s] = 1

hoge = max(d.values())

max_kv_list = [kv[0] for kv in d.items() if kv[1] == hoge]

max_kv_list = sorted(max_kv_list)
for ans in max_kv_list:
    print(ans)