func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int c, v, m, l, a, i = 1, x;     cin >> c >> v >> m >> a >> l;     x = v;     while (x < c) x += min(v + i * a - l, m - l), i++;     cout << i << endl;   }   