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  1. #include <stdio.h>
  2.  
  3. // Body構造体を定義
  4. typedef struct {
  5.     int id;       // ID
  6.     int weight;   // 体重
  7.     int height;   // 身長
  8. } Body;
  9.  
  10. // 関数の宣言
  11. void swap(Body data[]);
  12. void display(Body data[]);
  13.  
  14. int main(void) {
  15.     // Body構造体配列を初期化
  16.     Body data[] = {
  17.         {1, 65, 169},
  18.         {2, 73, 170},
  19.         {3, 59, 161},
  20.         {4, 79, 175},
  21.         {5, 55, 168}
  22.     };
  23.  
  24.     // データを並び替え
  25.     swap(data);
  26.  
  27.     // 結果を表示
  28.     display(data);
  29.  
  30.     return 0;
  31. }
  32.  
  33. // swap関数：データを身長の逆順に並び替える
  34. void swap(Body data[]) {
  35.     Body temp;
  36.  
  37.     // 配列の順序を入れ替える
  38.     temp = data[0];
  39.     data[0] = data[4];
  40.     data[4] = temp;
  41.  
  42.     temp = data[1];
  43.     data[1] = data[3];
  44.     data[3] = temp;
  45.  
  46.     // data[2]（中央）はそのままでOK
  47. }
  48.  
  49. // display関数：データを表示
  50. void display(Body data[]) {
  51.     for (int i = 0; i < 5; i++) {
  52.         printf("ID: %d, Weight: %d, Height: %d\n", data[i].id, data[i].weight, data[i].height);
  53.     }
  54. }
Success #stdin #stdout 0s 5280KB
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stdin
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Standard input is empty
stdout
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ID: 5, Weight: 55, Height: 168
ID: 4, Weight: 79, Height: 175
ID: 3, Weight: 59, Height: 161
ID: 2, Weight: 73, Height: 170
ID: 1, Weight: 65, Height: 169
https://ideone.com/w3ns1L
language:
C99 (gcc 8.3)
created:
3 days ago
visibility:
public

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