func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);     int a = 0, b = 0, c = 0, sum1 = 0, d = 0;     cin >> a >> b >> c >> d;     for (; sum1 <= d;) {       sum1 += b;       a -= c;     }     if (a > 0)       cout <<  YES ;     else       cout <<  NO ;   }   