2070B.cpp

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

int dis(string s) {
    int pos=0;
    for(int i=0;i<s.size();i++) {
        if(s[i]=='L') pos--;
        else pos++;

        if(pos==0) return i+1;
    }

    return -1;
}


int main() {
    ios::sync_with_stdio(false); 
    cin.tie(NULL);              

    int t;
    cin >> t;
    while (t--) {
        int n, x;
        cin >> n >> x;
        ll k;
        cin >> k;
        string s;
        cin >> s;

        int ind = 0;
        ll count = 0;
        ll sec = k;
        while (ind != n && sec >0) {
            x += (s[ind] == 'L' ? -1 : 1);
            sec--;

            if (x == 0) {
                ind = 0;
                count++;
                int rem=dis(s);
                if(rem!=-1) {
                    count+=sec/rem;
                    break;
                }
            } else {
                ind++;
            }
        }

        cout << count << '\n';
    }

    return 0;
}