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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. bool alternating(string s)
  5. {
  6.     for(int i=0;i<s.size()-1;i++)
  7.     {
  8.         if(s[i]==s[i+1])
  9.         return false;
  10.     }
  11.     return true;
  12. }
  13. void minOp(string s)
  14. {
  15.     int c0=0,c1=0;
  16.     if(alternating(s))
  17.  
  18.     {
  19.         cout<<0<<endl;
  20.         return;
  21.     }
  22.     for(int i=0;i<s.size();i++)
  23.     {
  24.         if(s[i]=='0')
  25.         c0++;
  26.         else
  27.         c1++;
  28.  
  29.     }
  30.     int diff=abs(c0-c1);
  31.     if(diff<=1)
  32.     cout<<1<<endl;
  33.     else if(diff<=3)
  34.     cout<<2<<endl;
  35.     else
  36.     cout<<3<<endl;
  37.  
  38. }
  39. int main() {
  40. 	// your code goes here
  41. 	int t;
  42. 	cin>>t;
  43. 	while(t--)
  44. 	{
  45. 	    string s;
  46. 	    cin>>s;
  47. 	    minOp(s);
  48. 	}
  49.  
  50. }
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https://ideone.com/fkXN7O
language:
C++ (gcc 8.3)
created:
9 days ago
visibility:
public

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