func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int T, cnt = 0;     cin >> T;     while (T--) {       long long int k, n, a, b;       cin >> k >> n >> a >> b;       k -= n * a;       if (k > 0)         cout << n <<   n ;       else {         k = -k;         long long int dif = a - b;         long long int turns = (k + dif) / dif;         if (turns > n)           cout <<  -1 n ;         else           cout << n - turns <<   n ;       }     }     return 0;   }   