fork download
copy 
  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. struct HideSite {
  5.     int x, y;
  6.     double distanceToTarget;
  7. };
  8.  
  9. int main() {
  10.     int err, n, Tx, Ty;
  11.     scanf("%d", &err);
  12.     scanf("%d", &n);
  13.     scanf("%d %d", &Tx, &Ty);
  14.  
  15.     struct HideSite hideSites[n];
  16.  
  17.     for (int i = 0; i < n; ++i) {
  18.         scanf("%d %d", &hideSites[i].x, &hideSites[i].y);
  19.         hideSites[i].distanceToTarget = sqrt(pow(hideSites[i].x - Tx, 2) + pow(hideSites[i].y - Ty, 2));
  20.     }
  21.  
  22.     int headIndex = -1;
  23.     int torsoIndex1 = -1;
  24.     int torsoIndex2 = -1;
  25.  
  26.     for (int i = 0; i < n; ++i) {
  27.         if (hideSites[i].distanceToTarget <= err) {
  28.             headIndex = i;
  29.             break;
  30.         } else if (torsoIndex1 == -1 && hideSites[i].distanceToTarget <= 2 * err) {
  31.             torsoIndex1 = i;
  32.         } else if (torsoIndex2 == -1 && hideSites[i].distanceToTarget <= 2 * err) {
  33.             torsoIndex2 = i;
  34.             break;
  35.         }
  36.     }
  37.  
  38.     if (headIndex != -1) {
  39.         printf("%d\n", headIndex);
  40.     } else if (torsoIndex1 != -1 && torsoIndex2 != -1) {
  41.         printf("%d %d\n", torsoIndex1, torsoIndex2);
  42.     } else {
  43.         printf("abort\n");
  44.     }
  45.  
  46.     return 0;
  47. }
  48.  
Success #stdin #stdout 0s 5540KB
comments (?)
stdin
copy 
20
3
0 0
-500 1500
1000 200
3000 1000
stdout
copy 
abort
https://ideone.com/oUQCF0
language:
C (gcc 8.3)
created:
2 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!