Problem: There are N cubes stacked vertically on a desk.  You are given a string S of length N. The color of the i-th cube from the bottom is red if the i-th character in S is `0`, and blue if that character is `1`.  You can perform the following operation any number of times: choose a red cube and a blue cube that are adjacent, and remove them. Here, the cubes that were stacked on the removed cubes will fall down onto the object below them.  At most how many cubes can be removed?

Submission attempts (in order):
s=str(input())
if s.count('1')>s.count('0'):
    print(s.count('0'))
else:
    print(s.count('1'))


import sys
line=[int(c) for c in sys.stdin.readline() if c!='/n']
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

import sys
line=[int(c) for c in sys.stdin.rstrip('/n')]
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

import sys
line=[int(c) for c in sys.stdin if c!='\n']
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

import sys
rawdata=sys.stdin.readline()
rawdata.rstrip('\n')
line=list(map(int,list(rawdata)))
line=list(map(int,list(str(input()))))
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

import sys
line=[int(c) for c in sys.stdin]
del line[-1]
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

import sys
line=[int(c) for c in sys.stdin]
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

line=input()
while 1:
  line_1=line[:len(line)//2]
  line_2=line[((len(line)//2)+1):len(line)]
  if line_1.count('1')>line_1.count('0'):
    line_1.replace('1','')
    line_2.replace('0','')
  else:
    line_2.replace('1','')
    line_1.replace('0','')
  lines=line_1+line_2
  break
line=[int(c) for c in lines]
length=len(line)
while 1:
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
  if 2 in line:
    line=[i for i in line if i!=2]
  else:
    break
print(length-len(line))

import sys
line=[int(c) for c in sys.stdin.read]
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

import sys
data=sys.stdin
line=[int(c) for c in data.rstrip('/n')]
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

import sys
line=[int(c) for c in sys.stdin.read()]
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

import sys
rawdata=sys.stdin.readline()
rawdata.rstrip('\n')
rawdata2=list(rawdata)
line=list(map(int,rawdata2))
line=list(map(int,list(str(input()))))
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))


import sys
line=[int(c) for c in sys.stdin.rstrip()]
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

line=input()
length=len(line)
while 1:
  line_1=line[:len(line)//2]
  line_2=[len(line)//2+1:len(line)]
  if line_1.count(1)>line_1.count(0):
    line_1.replace('1','')
    line_2.replace('0','')
  else:
    line_2.replace('1','')
    line_1.replace('0','')
  line=line_1+line_2
print(length-len(line))

s=str(input())
if s.count('1')>s.count('0'):
  print(s.count('1')-s.count('0')
else:
  print(s.count('0')-s.count('1')

s=str(input())
if s.count('1')>s.count('0'):
    print(s.count('1')-s.count('0'))
else:
    print(s.count('0')-s.count('1'))


s=str(input())
if s.count('1')>s.count('0'):
    print(s.count('0')*2)
else:
    print(s.count('1')*2)

Verdicts: Wrong Answer

Runtime Error

Runtime Error

Wrong Answer

Runtime Error

Wrong Answer

Wrong Answer

Wrong Answer

Runtime Error

Runtime Error

Runtime Error

Runtime Error

Runtime Error

Runtime Error

Runtime Error

Wrong Answer

Accepted