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  1. #include <stdio.h>
  2.  
  3. void swap(int *x, int *y) {
  4.     int t = *x;
  5.     *x = *y;
  6.     *y = t;
  7. }
  8.  
  9. int main() {
  10.     int data1[] = {1, 2, 3, 4, 5};
  11.     int data2[] = {6, 7, 8, 9, 10};
  12.     int size = sizeof(data1) / sizeof(data1[0]);
  13.  
  14.     for (int i = 0; i < size; i++) {
  15.         swap(&data1[i], &data2[i]);
  16.     }
  17.  
  18.     printf("data1: ");
  19.     for (int i = 0; i < size; i++) {
  20.         printf("%d ", data1[i]);
  21.     }
  22.  
  23.     printf("data2: ");
  24.     for (int i = 0; i < size; i++) {
  25.         printf("%d ", data2[i]);
  26.     }
  27.  
  28.     return 0;
  29. }
Success #stdin #stdout 0s 5284KB
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stdin
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Standard input is empty
stdout
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data1: 6 7 8 9 10 data2: 1 2 3 4 5
https://ideone.com/xLZ8rD
language:
C99 (gcc 8.3)
created:
28 days ago
visibility:
public

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