gistfile1.cpp

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
int number, result, i;
string text;
int main() {
    scanf("%i", &number);
    while(number--){
        scanf("%s", &text);
        result = 0;
        for(i=0;i<text.length() -1;i++){
            if (text[i] == text[i+1]){
                result++;
            }
        }
        printf("%i\n", result);
    }
    return 0;
}