Question

Write a c program to interchange the values of a and b ,if a=10and b=5 ?

Answer 1

Answer:

Swap Number

Explanation:

#include<stdio.h>

int main()

{

int a=10, b=5;

printf("Before swap a=%d b=%d",a,b);

a=a+b;//a=30 (10+20)

b=a-b;//b=10 (30-20)

a=a-b;//a=20 (30-10)

printf("\nAfter swap a=%d b=%d",a,b);

return 0;

}