func_code_string: #include <bits/stdc++.h>   using namespace std;   struct ring {     int c1;     int c2;     int r1;     int r2;   };   int contour(struct ring a, struct ring b, double dist) {     int cnt = 0;     if (dist >= a.r2 + b.r2 || dist <= b.r1 - a.r2 || dist <= a.r2 - b.r2) cnt++;     if (dist >= a.r1 + b.r2 || dist <= b.r1 - a.r1 || dist <= a.r1 - b.r2) cnt++;     return cnt;   }   int main() {     struct ring a, b;     cin >> a.c1 >> a.c2 >> a.r1 >> a.r2;     cin >> b.c1 >> b.c2 >> b.r1 >> b.r2;     double dist =         sqrt((a.c1 - b.c1) * (a.c1 - b.c1) + (a.c2 - b.c2) * (a.c2 - b.c2));     int ans = contour(a, b, dist) + contour(b, a, dist);     cout << ans << endl;     return 0;   }   