Another Good String

#include <bits/stdc++.h>
using namespace std;

int main() {
    int qaz, wsx, edc;
    cin >> qaz;

    while (qaz--) {
        cin >> wsx >> edc;

        string rfvtgb;
        cin >> rfvtgb;

        int yhn = 1, ujm = 1;

        for (int poi = 1; poi < wsx; ++poi) {
            yhn = (rfvtgb[poi] == rfvtgb[poi - 1]) ? yhn + 1 : 1;
            ujm = max(ujm, yhn);
        }

        cout << ujm << " ";

        while (edc--) {
            char dsa;
            cin >> dsa;
            rfvtgb += dsa;

            yhn = (dsa == rfvtgb[rfvtgb.size() - 2]) ? yhn + 1 : 1;
            ujm = max(ujm, yhn);

            cout << ujm << " ";
        }

        cout << endl;
    }

    return 0;
}