bacT11 SIII 3

#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("bac.txt");

int main() {
    int last = -1, fr = 0;
    for (int x; fin >> x;) {
        if (last == -1) {
            last = x;
        }
        if (last == x) {
            fr++;
        } else {
            cout << last << ' ' << fr << ' ';
            last = x;
            fr = 1;
        }
    }
    cout << last << ' ' << fr << ' ';
    return 0;
}