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  1. #include <stdio.h>
  2.  
  3. // Body構造体の定義
  4. typedef struct {
  5.     int id;
  6.     int weight;
  7.     int height;
  8. } Body;
  9.  
  10. // 2つのBody構造体を入れ替えるswap関数
  11. void swap(Body *a, Body *b) {
  12.     Body temp = *a;
  13.     *a = *b;
  14.     *b = temp;
  15. }
  16.  
  17. int main() {
  18.     // 構造体配列の初期化
  19.     Body a[] = {
  20.         {1, 65, 169},
  21.         {2, 73, 170},
  22.         {3, 59, 161},
  23.         {4, 79, 175},
  24.         {5, 55, 168}
  25.     };
  26.     int size = sizeof(a) / sizeof(a[0]);
  27.     // 身長の降順に並べ替え
  28.     for (int i = 0; i < size - 1; i++) {
  29.         for (int j = 0; j < size - i - 1; j++) {
  30.             if (a[j].height < a[j + 1].height) {
  31.                 swap(&a[j], &a[j + 1]); // データの入れ替え
  32.             }
  33.         }
  34.     }
  35.  
  36.     for (int i = 0; i < size; i++) {
  37.         printf("%d\t%d\t%d\n", a[i].id, a[i].weight, a[i].height);
  38.     }
  39.  
  40.     return 0;
  41. }
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
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Standard input is empty
stdout
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4	79	175
2	73	170
1	65	169
5	55	168
3	59	161
https://ideone.com/mYrLXd
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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