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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 minHeadErr = 2000;
  11.     int minTorsoErr = 2000;
  12.     int headIndex = -1;
  13.     int torsoIndex1 = -1, torsoIndex2 = -1;
  14.  
  15.     for(int i = 0; i < n; ++i) {
  16.         int xi, yi;
  17.         scanf("%d %d", &xi, &yi);
  18.  
  19.         int distanceSquared = (xi - Tx) * (xi - Tx) + (yi - Ty) * (yi - Ty);
  20.         double distance = sqrt(distanceSquared);
  21.         int errInCm = distance * err / 100;
  22.  
  23.         if (errInCm <= 15 && errInCm < minHeadErr) {
  24.             minHeadErr = errInCm;
  25.             headIndex = i;
  26.         } else if (errInCm <= 35 && errInCm < minTorsoErr) {
  27.             minTorsoErr = errInCm;
  28.             torsoIndex2 = torsoIndex1;
  29.             torsoIndex1 = i;
  30.         }
  31.     }
  32.  
  33.     if (headIndex != -1) {
  34.         printf("%d", headIndex);
  35.     } else if (torsoIndex1 != -1 && torsoIndex2 != -1) {
  36.         printf("%d %d", torsoIndex1, torsoIndex2);
  37.     } else {
  38.         printf("abort");
  39.     }
  40.  
  41.     return 0;
  42. }
  43.  
Success #stdin #stdout 0s 5516KB
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https://ideone.com/CmxFi3
language:
C (gcc 8.3)
created:
2 years ago
visibility:
public

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