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  1. #include <stdio.h>
  2.  
  3. // swap関数の定義
  4. void swap(int* x, int* y) {
  5.     int temp = *x;
  6.     *x = *y;
  7.     *y = temp;
  8. }
  9.  
  10. int main() {
  11.     // 配列の宣言と初期化
  12.     int data1[5] = {1, 2, 3, 4, 5};
  13.     int data2[5] = {6, 7, 8, 9, 10};
  14.  
  15.     // 交換前の配列を表示
  16.     printf("交換前:\n");
  17.     printf("data1: ");
  18.     for(int i = 0; i < 5; i++) {
  19.         printf("%d ", data1[i]);
  20.     }
  21.     printf("\ndata2: ");
  22.     for(int i = 0; i < 5; i++) {
  23.         printf("%d ", data2[i]);
  24.     }
  25.     printf("\n\n");
  26.  
  27.     // 配列の要素を入れ替え
  28.     for(int i = 0; i < 5; i++) {
  29.         swap(&data1[i], &data2[i]);
  30.     }
  31.  
  32.     // 交換後の配列を表示
  33.     printf("交換後:\n");
  34.     printf("data1: ");
  35.     for(int i = 0; i < 5; i++) {
  36.         printf("%d ", data1[i]);
  37.     }
  38.     printf("\ndata2: ");
  39.     for(int i = 0; i < 5; i++) {
  40.         printf("%d ", data2[i]);
  41.     }
  42.     printf("\n");
  43.  
  44.     return 0;
  45. }
  46.  
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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交換前:
data1: 1 2 3 4 5 
data2: 6 7 8 9 10 

交換後:
data1: 6 7 8 9 10 
data2: 1 2 3 4 5
https://ideone.com/EhIW0p
language:
C99 (gcc 8.3)
created:
28 days ago
visibility:
public

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