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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main() {
  5.     int err, n, Tx, Ty;
  6.     scanf("%d", &err);
  7.     scanf("%d", &n);
  8.     scanf("%d %d", &Tx, &Ty);
  9.  
  10.     int closest_head_index = -1, closest_torso_index1 = -1, closest_torso_index2 = -1;
  11.     int min_head_distance = 2000000, min_torso_distance = 2000000;
  12.  
  13.     for (int i = 0; i < n; ++i) {
  14.         int x, y;
  15.         scanf("%d %d", &x, &y);
  16.  
  17.         int distance_squared = (x - Tx) * (x - Tx) + (y - Ty) * (y - Ty);
  18.         double distance_mil = sqrt(distance_squared) * 100.0 / 100000.0;
  19.  
  20.         if (distance_mil <= err) {
  21.             // Check if it's in the head or torso area
  22.             if (y <= Ty + 3500 && y >= Ty + 1500) {
  23.                 // Check head area
  24.                 if (x >= Tx - 750 && x <= Tx + 750) {
  25.                     if (distance_mil < min_head_distance) {
  26.                         min_head_distance = distance_mil;
  27.                         closest_head_index = i;
  28.                     }
  29.                 }
  30.             } else if (y <= Ty + 1500 && y >= Ty - 1500) {
  31.                 // Check torso area
  32.                 if (x >= Tx - 1750 && x <= Tx + 1750) {
  33.                     if (distance_mil < min_torso_distance) {
  34.                         min_torso_distance = distance_mil;
  35.                         closest_torso_index2 = closest_torso_index1;
  36.                         closest_torso_index1 = i;
  37.                     }
  38.                 }
  39.             }
  40.         }
  41.     }
  42.  
  43.     if (closest_head_index != -1) {
  44.         // Sniper can accurately hit the target in the head
  45.         printf("%d\n", closest_head_index);
  46.     } else if (closest_torso_index1 != -1 && closest_torso_index2 != -1) {
  47.         // Sniper can accurately hit the target in the torso with two hide sites
  48.         printf("%d %d\n", closest_torso_index1, closest_torso_index2);
  49.     } else {
  50.         // No suitable hide site found
  51.         printf("abort\n");
  52.     }
  53.  
  54.     return 0;
  55. }
  56.  
Success #stdin #stdout 0.01s 5436KB
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https://ideone.com/fhVPE7
language:
C (gcc 8.3)
created:
2 years ago
visibility:
public

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