func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     double v1, v2, s1, s2, t, f, c;     double m;     int co;     while (cin >> v1 >> v2 >> t >> f >> c) {       if (v2 <= v1)         cout << 0 << endl;       else {         s1 = t * v1;         s2 = 0;         m = v2 - v1;         co = 0;         while (s1 < c) {           s1 += (s1 / m) * v1;           if (s1 >= c) break;           co++;           s1 += (s1 / v2 + f) * v1;         }         cout << co << endl;       }     }     return 0;   }   