fork download
copy 
  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define el "\n"
  4. #define ll long long
  5. #define ull unsigned long long
  6. #define se second
  7. #define fi first
  8. #define be begin()
  9. #define en end()
  10. #define Faster cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
  11.  
  12. int main()
  13. {
  14.     Faster;
  15.     string s; cin >> s;
  16.     vector<char> vt;
  17.     if(s.size() <= 1)
  18.     {
  19.         cout << 0;
  20.         return 0;
  21.     }
  22.     vt.push_back(s[0]);
  23.     for(int i = 1; i < s.size(); i++)
  24.     {
  25.         if(vt.back() != s[i]) vt.push_back(s[i]);
  26.     }
  27.     cout << s.size() - vt.size();
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0s 5288KB
comments (?)
stdin
copy 
aabbaaac
stdout
copy 
4
https://ideone.com/Xiemrx
language:
C++14 (gcc 8.3)
created:
12 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!