Question

Write a program swap two number using call by reference/call by value?
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Answer 1

Answer:

1. Call by reference Example: Swapping the values of the two variables
2. #include <stdio.h>
3. void swap(int *, int *); //prototype of the function.
4. int main()
5. {
6. int a = 10;
7. int b = 20;
8. printf("Before swapping the values in main a = %d, b = %d\n",a,b); // printing the value of a and b in main.
9. swap(&a,&b);