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  1. #include <stdio.h>
  2. void swap(int *a, int *b) {
  3.     int temp;
  4.     temp = *a;
  5.     *a = *b;
  6.     *b = temp;
  7. }
  8. int main() {
  9.     int num1 = 10;
  10.     int num2 = 20;
  11.     printf("Before swap:\n");
  12.     printf("num1 = %d\n", num1);
  13.     printf("num2 = %d\n", num2);
  14.     swap(&num1, &num2);
  15.     printf("\nAfter swap:\n");
  16.     printf("num1 = %d\n", num1);
  17.     printf("num2 = %d\n", num2);
  18.     return 0;
  19. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
Standard input is empty
stdout 
Before swap:
num1 = 10
num2 = 20

After swap:
num1 = 20
num2 = 10
https://ideone.com/Q7M688
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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