Write a program for swap two numbers without using 3rd variable?
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//In c language , I wrote this program!
#include <stdio.h>
void main()
{
int a,b;
printf("enter number1: ie a");
scanf("%d",&a);
printf("enter number2:ie b ");
scanf("%d",&b);
printf(value of a and b before swapping is a=%d,b=%d"a,b);
a=a+b;
b=a-b;
a=a-b;
printf("value of a and b after swapping is a=%d,b=%d"a,b);
}
OUTPUT :
enter number1: ie a 12
enter number2: ie b 23
value of a and b before swapping is a=12,b=23
value of a and b after swapping is a=23,b=12
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