Processing a string- CodeChef Solution in CPP

#include <iostream>
#include <string>
using namespace std;

int main() {
    int t;
    cin >> t;

    while (t--) {
        string s;
        cin >> s;

        int n = s.length();
        int count = 0;

        for (int i = 0; i < n - 1; i++) {
            if (s[i] != s[i + 1]) {
                count++;
                i++;
            }
        }

        cout << count << endl;
    }

    return 0;
}