Codeforces Problems Solution 226A - Stones on the Table

Hi friends, I am going to post the solve of the problem '226A - Stones on the Table' of Codeforces.
The problem screenshots is given below:

Code:
/// OmShantihari /// Author: Sujan Mridha /// CSE, University of Barishal #include <iostream> using namespace std; int main () { int n,s=0; string m; cin>>n>>m; if (n==1) { cout<<"0"<<endl; return 0; } for (int i=0;i<n-1;i++) { if (m[i]==m[i+1]) s++; } cout<<s<<endl; return 0; }