func_code_string: #include <bits/stdc++.h>   using namespace std;   int isprime(int n) {     int i;     for (i = 2; i * i <= n; i++) {       if (n % i == 0) return 0;     }     return 1;   }   int main() {     long long int n, k = 0, i = 0, m, x = 0, y, q, r, s, l, t, a, v0, v1, c, b,                      j = 0, d = 0, ct = 0, sum = 0, h[1000009] = {0},                      temp = 10000, fl = 0;     cin >> c >> v0 >> v1 >> a >> l;     for (i = 0;; i++) {       if ((v0 + a * i) <= v1)         c = c - (v0 + a * i);       else         c -= v1;       if (c <= 0) break;       c += l;     }     cout << i + 1;   }   