qyliang/CodeNanoFix huggingface dataset:
Buggy code:
n = int(input())
s = str(input())
slist = []
for i in range(n):
  slist.append(s[i])
slime = slist[0]
fslist = [slime]
for i in range(1, n):
  if slime != slist[i]:
    fslist.append(slist[i])
    slime = slist[i]
print(len(fslist)

Fixed code:
n = int(input())
s = str(input())
slist = []
for i in range(n):
  slist.append(s[i])
slime = slist[0]
fslist = []
fslist.append(slime)
for i in range(1, n):
  if slime != slist[i]:
    fslist.append(slist[i])
    slime = slist[i]
print(len(fslist))
Buggy code:
N = int(input())
X = input()
S = []
for a in range(N):
    S.append(X[a])

if N == 1:
    print(X)
else:
    for i in range(1,N):
        if S[i] != S[i-1]:
            continue
        else:
            S[i-1] = 'X'
        
lista = [k for k in S if k != 'X']
print(''.join(lista))

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

if N == 1:
    print(1)
else:
    for i in range(1,N):
        if S[i] != S[i-1]:
            continue
        else:
            S[i-1] = 'X'
    lista = [k for k in S if k != 'X']
    print(len(lista))
Buggy code:
N = int(input())
S = list(input())

forcuss = 0
j = 1
number = 1
print(S)

while j != N:
    if S[forcuss] == S[j]:
        j = j + 1
        continue
    elif S[forcuss] != S[j]:
        number = number + 1
        forcuss = j
        j = forcuss + 1

print(number)

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

forcuss = 0
j = 1
number = 1

while j != N:
    if S[forcuss] == S[j]:
        j = j + 1
        continue
    elif S[forcuss] != S[j]:
        number = number + 1
        forcuss = j
        j = forcuss + 1

print(number)
Buggy code:
from itertools import groupby
N = int(input())
S = input()
G = groupby(S)
print(len(G))

Fixed code:
from itertools import groupby
N = int(input())
S = input()
G = groupby(S)
print(len(list(G)))
Buggy code:
N = int(input())
S = input()


cnt = 1
for i in range(len(S)-1):
    if S[i] == S[i+1]:
        cnt += 1
print(cnt)

Fixed code:
n = int(input())
S = input()
cnt = len(S)
for i in range(cnt-1):
    if S[i] == S[i+1]:
      cnt -= 1
print(cnt)
Buggy code:
N = input()
S = input()
temp = ""
for cnt in N
	if temp != cnt:
    	temp = cnt
        lst += cnt
n = len(lst)
print("n")

Fixed code:
N = input()
S = input()
temp = ""
lst = ""
for cnt in S:
    if temp != cnt:
        temp = cnt
        lst += cnt
print(len(lst))
Buggy code:
n=int(input())
s=input()
a=1
for i in range(n):
  if s[i]!=s[i+1]:
    a+=1
print(a)

Fixed code:
n=int(input())
s=input()
a=1
for i in range(n-1):
  if s[i]!=s[i+1]:
    a+=1
print(a)
Buggy code:
N=int(input())
S=input()
count = 0
ans=1
j=''

for i in S:
    count +=1
    if (count>=2) & (i==j): continue
    else:
        j=i
        ans += 1

print(ans)

Fixed code:
N=int(input())
S=input()
count = 0
ans=0
j=''

for i in S:
    count +=1
    if (count>=2) & (i==j): continue
    else:
        j=i
        ans += 1

print(ans)
Buggy code:
print('input >>')
N = input()
S = input()

ans = 1
left = S[0]
for s in S:
    if not s == left:
        ans += 1
        left = s

print('----------output----------')
print(ans)

Fixed code:
# print('input >>')
N = input()
S = input()

ans = 1
left = S[0]
for s in S:
    if not s == left:
        ans += 1
        left = s

# print('----------output----------')
print(ans)
Buggy code:
N = int(input())
S = str(input())
fusion = []
for i in range(N):
    if S[i] != S[i-1]:
        fusion +=(S[i-1])
fusion +=S[N-1]
print(len(fusion))

Fixed code:
N = int(input())
S = str(input())
fusion = []
for i in range(N-1):
    if S[i+1] != S[i]:
        fusion +=(S[i])
fusion +=S[N-1]

print(len(fusion))
Buggy code:
N=int(input())
c=input()

print(N,c)
flag=True


while(flag):
  flag=False
  c_new=''
  for i in range(len(c)-1):
    if c[i]==c[i+1]:
      flag=True
      #del c[i-minus]
      #minus+=1
    else:
      c_new+=c[i]
  c_new+=c[len(c)-1]
  c=c_new
print(len(c))

Fixed code:
N=int(input())
c=input()

flag=True


while(flag):
  flag=False
  c_new=''
  for i in range(len(c)-1):
    if c[i]==c[i+1]:
      flag=True
      #del c[i-minus]
      #minus+=1
    else:
      c_new+=c[i]
  c_new+=c[len(c)-1]
  c=c_new
print(len(c))
Buggy code:
n = int(input())
s = input()

ans = ''
seek = 0

while seek < n:
    first = seek
    while seek < n and s[seek] == s[first]:
        seek += 1
    ans += s[first]

print(ans)


Fixed code:
n = int(input())
s = input()

ans = ''
seek = 0

while seek < n:
    first = seek
    while seek < n and s[seek] == s[first]:
        seek += 1
    ans += s[first]

print(len(ans))
Buggy code:
n = int(input())
s = input()

x = s[0]
summe = 0
for i in s:
  if x != i:
    summe += 1
    x = i
    
print(summe)

Fixed code:
n = int(input())
s = input()

x = s[0]
summe = 1
for i in s:
  if x != i:
    summe += 1
    x = i
    
print(summe)
Buggy code:
n=int(input())
S=str(input())
s=list(S)
i=1
while True:
    if i > n:
        break
    if s[i-1]==s[i]:
        s.pop(i)
        n -= 1
    else:
        i +=1

print(len(s))


Fixed code:
n=int(input())
S=str(input())
s=list(S)
i=1
while True:
    if n ==1 or n==0:
        break
    if s[i-1]==s[i]:
        s.pop(i)
        n -= 1
    else:
        i +=1
    if i >= n:
        break
print(len(s))
Buggy code:
N = int ( input() )
slimes = str( input() )
list_slimes = list( slimes )
while(True):
  counter = 0
  i = 0
  while(i<len(list_slimes)-1):
    if list_slimes[i] == list_slimes[i+1]:
      del list_slimes[i]
      counter += 1
    i += 1
  if counter == 1:
    break

print( len (list_slimes) )


Fixed code:
N = int ( input() )
slimes = str( input() )
list_slimes = list( slimes )
while(True):
  counter = 0
  i = 0
  while(i<len(list_slimes)-1):
    if list_slimes[i] == list_slimes[i+1]:
      del list_slimes[i]
      counter += 1
    i += 1
  if counter == 0:
    break

print( len (list_slimes) )
Buggy code:
N = int(input())
S = input()
tmp = ''
count = 0
for s in S:
    if s == tmp:
        count += 1
    tmp = s
print(count)

Fixed code:
N = int(input())
S = input()
tmp = ''
count = 0
for s in S:
    if s != tmp:
        count += 1
    tmp = s
print(count)
Buggy code:
n = int(input())
s = input()
count = 0

for i in range(n - 1):
    if s[i] != s[i + 1]:
        count += 1

print(count)

Fixed code:
n=int(input())
s=input()
ans=n
count=0
for i in range(n-1):
    if s[count]==s[count+1]:
        ans-=1
    count+=1
print(ans)
Buggy code:
n = int(input())
s = input()

for i in range(n - 1):
    if s[i] != s[i + 1]:
        count += 1

print(count)

Fixed code:
n = int(input())
s = input()
ans = 1
for i in range(n-1):
    if s[i] != s[i+1]:
        ans+=1
print(ans)
Buggy code:
n=int(input())
a=input().strip()
x+=a[0]
for i in range(1,n):
  if a[i]!=a[i-1]:
    x+=a[i]
print(len(x))


Fixed code:
n=int(input())
a=input().strip()
x=""
x+=a[0]
for i in range(1,n):
  if a[i]!=a[i-1]:
    x+=a[i]
print(len(x))
Buggy code:
N = int(input())
S = input()

count = 0
for i in range(N-1):
  if S[i]==S[i+1]:
    count += 1
    
print(count)    

Fixed code:
N = int(input())
S = list(input())
count = 0
for i in range(N-1):
    if S[i] == S[i+1]:
        count += 1
print(len(S)-count)
Buggy code:
string = str(input())
string =list(string)
index = 0 
i = 0
res = []
# print(string[index])
while index<len(string):
	res.append(string[index])
	# print(res[-1])
	while index<len(string) and res[-1]==string[index]:
		index+=1
	i+=1
print(len(res))



Fixed code:
N = int(input())
string = str(input())
string =list(string)
index = 0 
i = 0
res = []
# print(string[index])
while index<len(string):
	res.append(string[index])
	# print(res[-1])
	while index<len(string) and res[-1]==string[index]:
		index+=1
	i+=1
print(len(res))
Buggy code:
n = int(input())
S = input()

ans = 0

S = list(S)
for i in range(len(S)-1):
    if S[i]==S[i+1]:
        ans += 1

print(ans)


Fixed code:
n = int(input())
S = input()

ans = 1

S = list(S)
for i in range(len(S)-1):
    if S[i]!=S[i+1]:
        ans =ans+1

print(ans)
Buggy code:
from copy import deepcopy
from sys import exit,setrecursionlimit
import math
from collections import defaultdict,Counter,deque
from itertools import permutations, combinations,combinations_with_replacement,product
from fractions import Fraction as frac
import bisect
import heapq

import logging
logging.basicConfig(level=logging.DEBUG)

import sys
#input = sys.stdin.readline().rstrip

setrecursionlimit(1000000)

MOD = 10**9+7
INF = float('inf')

def main():
    N=int(input())
    S=input()

    ans=0
    pre_s=S[0]
    for i in range(1,len(S)):
        s=S[i]
        if pre_s!=s:
            ans+=1

    print(ans if ans !=0 else 1)
main()

Fixed code:
from copy import deepcopy
from sys import exit,setrecursionlimit
import math
from collections import defaultdict,Counter,deque
from itertools import permutations, combinations,combinations_with_replacement,product
from fractions import Fraction as frac
import bisect
import heapq

import logging
logging.basicConfig(level=logging.DEBUG)

import sys
#input = sys.stdin.readline().rstrip

setrecursionlimit(1000000)

MOD = 10**9+7
INF = float('inf')

def main():
    N=int(input())
    S=input()

    ans=1
    pre_s=S[0]
    for i in range(1,len(S)):
        s=S[i]
        if pre_s!=s:
            ans+=1
        pre_s=s

    print(ans if ans !=0 else 1)
main()
Buggy code:
N=int(input())
S=input()

ans=0
p=''
for i in range(N):
    if p != S[i]:
        result += 1
        p=S[i]
print(ans)

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

ans=0
p=''
for i in range(N):
    if p != S[i]:
        ans += 1
        p=S[i]
print(ans)
Buggy code:
N = str(input())
S = str(input()).split()
answer = []
 
for s in S:
  if len(answer) == 0:
    answer.append(s)
  elif answer[-1] != s:
    answer.append(s)
print(len(answer))


Fixed code:
N = str(input())
S = list(input())
answer = []

for s in S:
  if len(answer) == 0:
    answer.append(s)
  elif answer[-1] != s:
    answer.append(s)
print(len(answer))
Buggy code:
n=int(input())
s=input()
ans=1
b_c=s[0]
for i in s[1:]:
  if b_c!=i:
    ans+=1
  b_c=i

Fixed code:
n=int(input())
s=input()
ans=1
b_c=s[0]
for i in s[1:]:
  if b_c!=i:
    ans+=1
  b_c=i
print(ans)
Buggy code:
N = int(input())
S = input()
x0 = S[0]
cnt = 0
for i in S:
    if i != x0:
        cnt += 1
    x0 = i
    print(x0)
print(cnt)

Fixed code:
N = int(input())
S = input()
x0 = S[0]
cnt = 1
for i in S:
    if i != x0:
        cnt += 1
    x0 = i
print(cnt)
Buggy code:
n = int(input())
k = list(input())

out = k[0]
for i in range(1,n):
    if k[i-1] != k[i]:
        out += k[i]
print(out)

Fixed code:
n = int(input())
k = list(input())
out = k[0]
for i in range(1,n):
    if k[i-1] != k[i]:
        out += k[i]
print(len(out))
Buggy code:
N=int(input())
S=input()
ct=0
for i in range(N-1):
  if S[i]!=S[i+1]:
    ct+=1
print(ct)

Fixed code:
N=int(input())
S=input()
ct=1
for i in range(N-1):
  if S[i]!=S[i+1]:
    ct+=1
print(ct)
Buggy code:
n = int(input())
s = list(input())
c = 1
for i in range(n):
    print(i)
    if i+1 == n:
        break
    if s[i] != s[i+1]:
        c += 1
print(c)


Fixed code:
n = int(input())
s = list(input())
c = 1
for i in range(n):
    if i+1 == n:
        break
    if s[i] != s[i+1]:
        c += 1
print(c)
Buggy code:
import sys
input = sys.stdin.readline
import itertools

def main():
    input()
    print(len(tuple(itertools.groupby(input()))))

if __name__ == '__main__':
    main()


Fixed code:
import sys
import itertools

def main():
    input()
    print(len(tuple(itertools.groupby(input()))))

if __name__ == '__main__':
    main()
Buggy code:
n = int(input())
s = input()
ans = 1
for i in range(n):
  if s[i] != s[i+1]:
    ans += 1
print(ans+1)

Fixed code:
n = int(input())
s = input()
ans = 1
for i in range(len(s)-1):
    if s[i] != s[i+1]:
        ans += 1
print(ans)
Buggy code:
n = int(input())
s = input()

num = n
for i in range(n-1,0,-1):
    if s[i]==s[i-1]:
        s = s[:i] + s[i+1:]
print(s)     
print(len(s))     


Fixed code:
n = int(input())
s = input()

num = n
for i in range(n-1,0,-1):
    if s[i]==s[i-1]:
        s = s[:i] + s[i+1:]
    
print(len(s))
Buggy code:
n = int(input())
s = input()
s += "1"
ans = 0
for i in range(n):
  if s[i] != s[i+1]:
    ans += 1

Fixed code:
n = int(input())
s = input()
s += "1"
ans = 0
for i in range(n):
  if s[i] != s[i+1]:
    ans += 1
print(ans)
Buggy code:
N = int(input())
S = input()
a = []
for i in range(N-1):
  if S[i] != S[i+1]:
    a.append(S[i])
if len(a) == 0:
  print(0)
else:
  print(len(a)+1)

Fixed code:
N = int(input())
S = input()
a = []
for i in range(N-1):
  if S[i] != S[i+1]:
    a.append(S[i])
print(len(a)+1)
Buggy code:
n = int(input())
s = input()
after_fusion = []

current = ''
for i in range(n):
    if s[i] != current:
        after_fusion.append(s[i])
        current = s[i]

print(len(after_fusion)

Fixed code:
n = int(input())
s = input()
after_fusion = []

current = ''
for i in range(n):
    if s[i] != current:
        after_fusion.append(s[i])
        current = s[i]

print(len(after_fusion))
Buggy code:
# coding: utf-8

n = int(input())

d = input()

s = []
for i in range(n):
    if ((len(s) > 0 and d[i] != s[len(s)-1]) or (len(s) == 0)):
        s.append(d[i])
print(''.join(s))

Fixed code:
# coding: utf-8

n = int(input())

d = input()

s = []
for i in range(n):
    if ((len(s) > 0 and d[i] != s[len(s)-1]) or (len(s) == 0)):
        s.append(d[i])
print(len(s))
Buggy code:
N = int(input())
S = list(input())
counter = 0
last_char = None
for char in S:
  if char != last_char:
    counter += 0
    last_char = char

print(counter)

Fixed code:
N = int(input())
S = list(input())
counter = 0
last_char = None
for char in S:
  if char != last_char:
    counter += 1
    last_char = char

print(counter)
Buggy code:
n = int(input())
s = input()

before = aaa
ans = 0
for char in s:
  if char != before:
    before = char
    ans += 1
print(ans)


Fixed code:
n = int(input())
s = input()
 
before = 'aaa'
ans = 0
for char in s:
  if char != before:
    before = char
    ans += 1
print(ans)
Buggy code:
n=int(input())
l=list(input())
now=l[0]
count=0
for i in range(1,n):
  if now!=l[i]:
    count+=1
    now=l[i]
  else:
    pass
print(count)

Fixed code:
n=int(input())
l=list(input())
now=l[0]
count=0
for i in range(1,n):
  if now!=l[i]:
    count+=1
    now=l[i]
  else:
    pass
print(count+1)
Buggy code:
n = int(input())

l = str(input())

ans = int(0)

if l[n-2] != l[n-1]:
    ans += 1

for i in range(1,n):
    if l[i-1] != l [i]:
        ans += 1

print(ans)

Fixed code:
n = int(input())

l = str(input())

ans = int(1)

for i in range(1,n):
    if l[i-1] != l [i]:
        ans += 1

print(ans)
Buggy code:
N = int(input())
Slime = list(input())
check = 'st'
res = 0

for i in range(N-1):
	if Slime[i+1] != check:
		check = Slime[i+1]
		res += 1
res += 1

print(res)

Fixed code:
N = int(input())
Slime = list(input())
check = Slime[0]
res = 0

for i in range(N-1):
	if Slime[i+1] != check:
		check = Slime[i+1]
		res += 1
res += 1

print(res)
Buggy code:
N=int(input())
S=str(input())

ans=N

for i in range(N-1):
    if S[i]=S[i+1]:
        ans-=1

print(ans)






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

ans=N

for i in range(N-1):
    if S[i]==S[i+1]:
        ans-=1

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

ans = [S[-1]]

for i in range(N):
    if(ans[-1] != S[i]):
        ans.append(S[i])

print(len(ans))


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

ans = [S[0]]

for i in range(N):
    if(ans[-1] != S[i]):
        ans.append(S[i])

print(len(ans))
Buggy code:
def ri(): return int(input())
def rli(): return list(map(int, input().split()))
def rls(): return list(map(str, input().split()))
def pl(a): print(" ".join(list(map(str, a))))
def ma():return map(int,input().split())
from collections import accumulate as acc
import operator as op
import copy as cp
import math 

n=ri()
s=input()
cnt=n
if n==1:
  print(1)
  
else:
  for i in range(n-1):
    if s[i]==s[i+1]:
      cnt-=1
  print(cnt)

Fixed code:
def ri(): return int(input())
def rli(): return list(map(int, input().split()))
def rls(): return list(map(str, input().split()))
def pl(a): print(" ".join(list(map(str, a))))
def ma():return map(int,input().split())
from itertools import accumulate as acc
import operator as op
import copy as cp
import math 

n=ri()
s=input()
cnt=n
if n==1:
  print(1)
  
else:
  for i in range(n-1):
    if s[i]==s[i+1]:
      cnt-=1
  print(cnt)
Buggy code:
N = int(input())
S = input()

prev = S[0]:

num = 1
for s in S[1:]:
    if prev != s:
        num += 1
    prev = s

print(num)

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

prev = S[0]

num = 1
for s in S[1:]:
    if prev != s:
        num += 1
    prev = s

print(num)
Buggy code:
N = int(input())
s = input()

count = 0
prev = None
for i in list(s):
  if i!=prev:
    count += 1
    
print(count)
    

Fixed code:
N = int(input())
s = input()

count = 0
prev = None
for i in list(s):
  if i!=prev:
    count += 1
  prev = i
    
print(count)
Buggy code:
# -*- coding: utf-8 -*-

# Input
s = [input() for i in range(2)]

N = int(s[0])
S = list(s[1])

print(N)
print(S)

# Process
M = 0

for i in range(1,N):
    if S[i-1] == S[i]:
        M += 1

N = N - M


# Output
print(N)


Fixed code:
# -*- coding: utf-8 -*-

# Input
s = [input() for i in range(2)]

N = int(s[0])
S = list(s[1])

# Process
M = 0

for i in range(1,N):
    if S[i-1] == S[i]:
        M += 1

N = N - M

# Output
print(N)
Buggy code:
N = int(input())
S = list(input())

count = 0
temp = ""

for s in S:
    if s == temp:
        count += 1
    temp = s
print(count)

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

count = 0
temp = ""

for s in S:
    if s != temp:
        count += 1
    temp = s
print(count)
Buggy code:
n = int(input())
s = input()
res = 0
for i in range(n-1):
  if s[i] != s[i+1]:
    res += 1
print(res)

Fixed code:
n = int(input())
s = input()
res = 1
for i in range(n-1):
  if s[i] != s[i+1]:
    res += 1
print(res)
Buggy code:
import sys
import math
import itertools
import collections
import numpy as np

rl = sys.stdin.readline
n = int(rl())
s = rl()
cnt = 0
for i in range(n-1):
  if s[i] != s[i+1]:
    cnt += 1
print(cnt)
  


Fixed code:
import sys
import math
import itertools
import collections
import numpy as np

rl = sys.stdin.readline
n = int(rl())
s = rl()
cnt = 1
for i in range(n-1):
  if s[i] != s[i+1]:
    cnt += 1
print(cnt)
Buggy code:
n = int(input())
d = input()

c = 0
for i in range(len(d):
    if d[i] != d[i+1]:
        c += 1

print(c+1)

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

c = 0
for i in range(len(d)-1):
    if d[i] != d[i+1]:
        c += 1

print(c+1)
Buggy code:
s=input()
t=''
a=1
for i in len(s)-1:
  if s[i]!=s[i+1]:
    a+=1
print(a)

Fixed code:
_=input()
s=input()
t=''
a=1
for i in range(len(s)-1):
  if s[i]!=s[i+1]:
    a+=1
print(a)
Buggy code:
n = int(input())
s = input()
cur = s[0]
l = []
for i in range(n - 1):
    if cur != s[i + 1]:
        l.append(cur)
print(len(l))

Fixed code:
n = int(input())
s = input()
cur = s[0]
l = []
for i in range(n - 1):
    if cur != s[i + 1]:
        l.append(cur)
        cur = s[i + 1]
l.append(cur)
print(len(l))
Buggy code:
A=int(input())
B=input()
C=[]
for i in range(len(B)-1):
  if B[i]==B[i+1]:
    C.append(i+1)
print(len(C))

Fixed code:
A=int(input())
B=input()
C=[]
for i in range(len(B)-1):
  if B[i]==B[i+1]:
    C.append(i+1)
print(len(B)-len(C))
Buggy code:
n = int(input())
s = str(input())
color = s[0]
cnt = 0
for i in range(n-1):
    if not color == s[i+1]:
        cnt += 1
        color == s[i+1]
print(cnt)

Fixed code:
n = int(input())
s = str(input())
color = s[0]
cnt = 1
for i in range(n-1):
    if not color == s[i+1]:
        cnt += 1
        color = s[i+1]
print(cnt)
Buggy code:
n = int(input())
S = input()

tmp = ''
cnt = 0
for s in S:
    if s == tmp:
        cnt += 1
    tmp = s
print(cnt)


Fixed code:
n = int(input())
S = input()
tmp = ''
cnt = 0
for s in S:
    if s != tmp:
        cnt += 1
        tmp = s
print(cnt)
Buggy code:
N = int(input())
S = input()
ans=0
for i in range(N-1):
  if(S[i] == S[i+1]):
    ans++
ans=N-ans
print(ans)

Fixed code:
N = int(input())
S = input()
ans=0
for i in range(N-1):
  if(S[i] == S[i+1]):
    ans+=1
ans=N-ans
print(ans)
Buggy code:
def T():
    N=int(input())
    S=input()
    c=''
    t=0
    for s in S:
        if s==c:
            t+=1
        c=s
    return(t)
print(N-T())

Fixed code:
def T():
    N=int(input())
    S=input()
    c=''
    t=0
    for s in S:
        if s==c:
            t+=1
        c=s
    return(N-t)
print(T())
Buggy code:
n=int(input())
d=list(input())
ans=0
for i in range(1,n):
    if d[i-1]!=d[i]:
        ans+=1
print(ans)

Fixed code:
n=int(input())
d=list(input())
ans=1
for i in range(1,n):
    if d[i-1]!=d[i]:
        ans+=1
print(ans)
Buggy code:
n = int(input())
s = input()

ans = 0
for i in range(1,s):
  if s[i] != s[i-1]:
    ans += 1
    
print(ans)

Fixed code:
n = int(input())
s = input()
ans = 1
if n != 1:
    for i in range(n-1):
        if s[i] != s[i+1]:
            ans += 1

print(ans)
Buggy code:
n=int(input())
t=input()
ans=t[0]
for i in range(1,n):
    if ans[-1]==i:
        pass
    else:
        ans=ans+i
print(len(ans))

Fixed code:
n=int(input())
t=input()
ans=t[0]
for i in range(1,n):
    if ans[-1]==t[i]:
        pass
    else:
        ans=ans+t[i]
print(len(ans))
Buggy code:
n = int(input())
s = input()
cnt = 1
for i in rage(n-1):
  if(s[i]!=s[i+1]):
    cnt = cnt+1
print(cnt)

Fixed code:
n = int(input())
s = input()
cnt = 1
for i in range(n-1):
  if(s[i]!=s[i+1]):
    cnt = cnt+1
print(cnt)
Buggy code:
total = input()
slimes = list(input())

pre = ""
last = []

for i in slimes:
    if pre != i:
        last.append(i)
    pre = i
    print(pre)

print(len(last))


Fixed code:
total = input()
slimes = list(input())

pre = ""
last = []

for i in slimes:
    if pre != i:
        last.append(i)
    pre = i

print(len(last))
Buggy code:
N = int(input())
S = list(input())
print(S)
count = 1
for i in range(N):
    if i == 0:
        continue
    elif S[i-1] != S[i]:
        count += 1

print(count)

Fixed code:
N = int(input())
S = list(input())
#print(S)
count = 1
for i in range(N):
    if i == 0:
        continue
    elif S[i-1] != S[i]:
        count += 1

print(count)
Buggy code:
s = input()
checks = s[0]
ans = 1
for c in list(s):
  if c != checks:
    checks = c
    ans += 1
print(ans)

Fixed code:
n =int(input())
s = input()
checks = s[0]
ans = 1
for c in list(s):
  if c != checks:
    checks = c
    ans += 1
print(ans)
Buggy code:
import sys

n = int(input())
s = input()
i = 0
ck = ''
result = ''
for i in range(len(s) - 1):
	if s[i] == s[i + 1]:
		if s[i] != ck:
			print('ck = ' + ck)
			ck = s[i]
			result += ck
	elif s[i] != ck:
		print('ck = ' + ck)
		ck = s[i]
		result += ck

if s[-1:] != ck:
	result += s[-1:]

print(result)
print(len(result))

Fixed code:
import sys

n = int(input())
s = input()
i = 0
ck = ''
result = ''
for i in range(len(s) - 1):
	if s[i] == s[i + 1]:
		if s[i] != ck:
			ck = s[i]
			result += ck
	elif s[i] != ck:
		ck = s[i]
		result += ck

if s[-1:] != ck:
	result += s[-1:]

print(len(result))
Buggy code:
x = int(input())
slime = str(input())
i = 0
scount = 0
while(i < n-1):
    if(slime[i] != slime[i+1]):
        scount += 1
    i += 1
print(scount)

Fixed code:
x = int(input())
slime = str(input())
i = 0
scount = 1
while(i < x-1):
    if(slime[i] != slime[i+1]):
        scount += 1
    i += 1
print(scount)
Buggy code:
n=int(input())
s=input()
ans=0
for i in range(1,n):
    if s[i]!=s[i-1]:
        ans+=1
print(ans)

Fixed code:
n=int(input())
s=input()
ans=0
for i in range(1,n):
    if s[i]!=s[i-1]:
        ans+=1
print(ans+1)
Buggy code:
N = int(input())
S = input()

cnt = 0
for i in range(1, len(S)):
    if S[i-1] == S[i]:
        cnt += 1
print(cnt)

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

cnt = 1
for i in range(1, len(S)):
    if S[i-1] != S[i]:
        cnt += 1
print(cnt)
Buggy code:
import sys

n = int(sys.stdin.readline())
S = list(sys.stdin.readline())

for i in range(1, n):
    if(S[i-1] ==S[i]):
        S[i-1]=""
S = ''.join(S)
#print(S)
print(len(S))

Fixed code:
import sys

n = int(sys.stdin.readline())
S = list(sys.stdin.readline().rstrip())

for i in range(1, n):
    if(S[i-1] ==S[i]):
        S[i-1]=""
S = ''.join(S)
#print(S)
print(len(S))