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  1. #include <stdio.h>
  2.  
  3. typedef struct {
  4.     int id;
  5.     int weight;
  6.     int height;
  7. } Body;
  8.  
  9. // swap関数: Body型の2つの変数を入れ替える
  10. void swap(Body *a, Body *b) {
  11.     Body w = *a;
  12.     *a = *b;
  13.     *b = w;
  14. }
  15.  
  16. int main() {
  17.     Body a[] = {
  18.         {1, 65, 169},
  19.         {2, 73, 170},
  20.         {3, 59, 161},
  21.         {4, 79, 175},
  22.         {5, 55, 168}
  23.     };
  24.     int n = sizeof(a) / sizeof(a[0]);
  25.  
  26.     // 身長を基準に降順にソート
  27.     for (int i = 0; i < n - 1; i++) {
  28.         for (int j = 0; j < n - i - 1; j++) {
  29.             if (a[j].height < a[j + 1].height) {
  30.                 swap(&a[j], &a[j + 1]);
  31.             }
  32.         }
  33.     }
  34.  
  35.     // 結果の表示
  36.     printf("ID\tWeight\tHeight\n");
  37.     for (int i = 0; i < n; i++) {
  38.         printf("%d\t%d\t%d\n", a[i].id, a[i].weight, a[i].height);
  39.     }
  40.  
  41.     return 0;
  42. }
Success #stdin #stdout 0s 5284KB
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stdout
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ID	Weight	Height
4	79	175
2	73	170
1	65	169
5	55	168
3	59	161
https://ideone.com/nN5btW
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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