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  1. #include <stdio.h>
  2.  
  3. void swap(int *x, int *y){
  4.     int tmp = *y;
  5.     *y = *x;
  6.     *x = tmp;
  7. }
  8.  
  9. int main() {
  10.     int x = 100;
  11.     int y = 200;
  12.  
  13.     swap(&x, &y);  // アドレスを渡す
  14.     printf("x=%d,  y=%d\n", x, y);
  15.  
  16.     return 0;
  17. }
  18.  
  19.  
Success #stdin #stdout 0s 5288KB
comments (?)
stdin 
Standard input is empty
stdout 
x=200,  y=100
https://ideone.com/RyIDkT
language:
C (gcc 8.3)
created:
12 days ago
visibility:
public

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