func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     double x, y, r, x1, y1;     cin >> r >> x >> y >> x1 >> y1;     double diam = 2 * r;     double dist = sqrt((x1 - x) * (x1 - x) + (y1 - y) * (y1 - y));     int q = 0;     if (dist == 0) {       cout << 0 << endl;     } else {       while (dist >= diam) {         dist -= diam;         q++;       }       if (dist == 0) {         cout << q << endl;       } else {         cout << q + 1 << endl;       }     }     return 0;   }   