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  1. #include <stdio.h>
  2.  
  3. struct Body {
  4.     int id;
  5.     int weight;
  6.     int height;
  7. };
  8.  
  9. /* 構造体を入れ替える swap 関数 */
  10. void swap(struct Body *x, struct Body *y)
  11. {
  12.     struct Body temp;
  13.     temp = *x;
  14.     *x = *y;
  15.     *y = temp;
  16. }
  17.  
  18. int main(void)
  19. {
  20.     int i, j;
  21.  
  22.     /* 構造体配列の初期化（←課題で指定された値に合わせてね） */
  23.     struct Body a[] = {
  24.         {1, 60, 170},
  25.         {2, 55, 160},
  26.         {3, 70, 180},
  27.         {4, 65, 175}
  28.     };
  29.  
  30.     int n = sizeof(a) / sizeof(a[0]);
  31.  
  32.     /* 身長の逆順（高い順）に整列 */
  33.     for (i = 0; i < n - 1; i++) {
  34.         for (j = i + 1; j < n; j++) {
  35.             if (a[i].height < a[j].height) {
  36.                 swap(&a[i], &a[j]);
  37.             }
  38.         }
  39.     }
  40.  
  41.     /* 表示 */
  42.     for (i = 0; i < n; i++) {
  43.         printf("ID=%d 体重=%d 身長=%d\n",
  44.                a[i].id, a[i].weight, a[i].height);
  45.     }
  46.  
  47.     return 0;
  48. }
  49.  
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin 
Standard input is empty
stdout 
ID=3 体重=70 身長=180
ID=4 体重=65 身長=175
ID=1 体重=60 身長=170
ID=2 体重=55 身長=160
https://ideone.com/0YNXN5
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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