func_code_string: #include <bits/stdc++.h>   long long int power(int x, int y) {     int i = 0;     long long int result = 1;     for (i = 0; i < y; i++) result = result * x;     return result;   }   int main() {     int r, d, r1;     int n;     int x, y;     int i = 0;     double dist = 0;     int count = 0;     double temp1, temp2;     scanf( %d %d , &r, &d);     scanf( %d , &n);     for (i = 0; i < n; i++) {       scanf( %d %d %d , &x, &y, &r1);       dist = power(x, 2) + power(y, 2);       dist = sqrt(dist);       temp1 = dist + r1;       temp2 = dist - r1;       if (temp1 <= r && temp2 >= r - d) count++;     }     printf( %d , count);     return 0;   }   