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  1. #include <stdio.h>
  2.  
  3. void swap(int *x, int *y) {
  4.     int A = *x; 
  5.     *x = *y;       
  6.     *y = A;     
  7. }
  8.  
  9. int main() {
  10.     int data1[5] = {1, 2, 3, 4, 5}; 
  11.     int data2[5] = {6, 7, 8, 9, 10}; 
  12.  
  13.     printf("data1: ");
  14.     for (int i = 0; i < 5; i++) {
  15.         printf("%d ", data1[i]);
  16.     }
  17.     printf("\ndata2: ");
  18.     for (int i = 0; i < 5; i++) {
  19.         printf("%d ", data2[i]);
  20.     }
  21.     printf("\n");
  22.  
  23.     for (int i = 0; i < 5; i++) {
  24.         swap(&data1[i], &data2[i]);
  25.     }
  26.  
  27.     printf("data1: ");
  28.     for (int i = 0; i < 5; i++) {
  29.         printf("%d ", data1[i]);
  30.     }
  31.     printf("\ndata2: ");
  32.     for (int i = 0; i < 5; i++) {
  33.         printf("%d ", data2[i]);
  34.     }
  35.  
  36.     return 0;
  37. }
  38.  
  39.  
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
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Standard input is empty
stdout
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data1: 1 2 3 4 5 
data2: 6 7 8 9 10 
data1: 6 7 8 9 10 
data2: 1 2 3 4 5
https://ideone.com/r1db72
language:
C99 (gcc 8.3)
created:
28 days ago
visibility:
public

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