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  1. #include<bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. string s;
  6.  
  7. int main(){
  8.     cin >> s;
  9.     int n = s.size();
  10.     int so_xau_con = 0;
  11.     for(int i = 0; i < n; i++){
  12.         if(s[i] != s[(i+1)%n]) so_xau_con++;
  13.     }
  14.     if(so_xau_con == 0) cout << 0;
  15.     else cout << (so_xau_con - 2)/2;
  16. }
  17.  
Success #stdin #stdout 0s 5316KB
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/mlUDaG
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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