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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.    string s;
  8.    cin>>s;
  9.  
  10.    int n = stoi(s);
  11.    int ans = 0;
  12.    int i=0;
  13.    while(n>0)
  14.    {
  15.        ans = ans+(n%10)*pow(2,i);
  16.        i++;
  17.        n=n/10;
  18.    }
  19.  
  20.    int c=0;
  21.    while(ans>0)
  22.    {
  23.    	if(ans%2==0)
  24.    	{
  25.    		ans=ans/2;
  26.    	}
  27.    	else
  28.    	{
  29.    		ans = ans-1;
  30.    	}
  31.    	c=c+1;
  32.    }
  33.    cout<<c;
  34. }
Success #stdin #stdout 0.01s 5516KB
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stdin 
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stdout 
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https://ideone.com/J0SlPZ
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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