func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, t, k, d;     cin >> n >> t >> k >> d;     int curr = 0;     while (curr <= d) {       n -= k;       curr += t;     }     if (n > 0) {       cout <<  YES ;     } else {       cout <<  NO ;     }   }   