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  1. #include <stdio.h>
  2.  
  3. // 構造体Bodyの定義
  4. struct Body {
  5.     int id;
  6.     int weight;
  7.     int height;
  8. };
  9.  
  10. // 構造体を入れ替えるためのswap関数
  11. void swap(struct Body *x, struct Body *y) {
  12.     struct Body temp = *x;
  13.     *x = *y;
  14.     *y = temp;
  15. }
  16.  
  17. int main() {
  18.     // 構造体配列の初期化
  19.     struct Body a[] = {
  20.         {1, 65, 170},
  21.         {2, 60, 160},
  22.         {3, 70, 180},
  23.         {4, 55, 155},
  24.         {5, 80, 175}
  25.     };
  26.     int n = sizeof(a) / sizeof(a[0]); // 配列の要素数
  27.  
  28.     // 身長の逆順（降順）にバブルソート
  29.     for (int i = 0; i < n - 1; i++) {
  30.         for (int j = 0; j < n - 1 - i; j++) {
  31.             if (a[j].height < a[j + 1].height) { // 逆順なので「＜」で比較
  32.                 swap(&a[j], &a[j + 1]);
  33.             }
  34.         }
  35.     }
  36.  
  37.     // 結果の表示
  38.     printf("ID\t体重\t身長\n");
  39.     for (int i = 0; i < n; i++) {
  40.         printf("%d\t%d\t%d\n", a[i].id, a[i].weight, a[i].height);
  41.     }
  42.  
  43.     return 0;
  44. }
Success #stdin #stdout 0s 5332KB
comments (?)
stdin 
Standard input is empty
stdout 
ID	体重	身長
3	70	180
5	80	175
1	65	170
2	60	160
4	55	155
https://ideone.com/exWZVi
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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