Update 266A - Stones on the Table.cpp #11
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//Abdelrahman
#include <bits/stdc++.h>
#include
#include
#include
typedef long long ll;
using namespace std;
int main() {
int n , count = 0;
cin >> n;
string s;
cin >> s;
for (int i = 1; i < n; ++i) {
if (s[i] == s[i-1])
count++;
}
cout <<count ;
return 0;
}