Write a C program to interchange two numbers.
#include<stdio.h>
void main()
{
int a,b;
a=10;
b=20;
printf(“value of a before iuterchange =%d\n”,a);
printf(“value of a before iuterchange =%d\n”,b);
a+=b;
b=a-b;
a=a-b;
printf(“value of a after iuterchange =%d\n”,a);
printf(“value of a after iuterchange =%d\n”,b);
return 0;
}
Output
value of a before iuterchange =10
value of a before iuterchange =20
value of a after iuterchange =20
value of a after iuterchange =10
