Swap Two numbers (without using temporary variable)

PROCEDURE:-

      1.input values for a and b
      2. compute a= a+b
      3. compute b =a-b
      4. compute a=a-b
      5.print value of a and b after swapping

CODE:-

#include<stdio.h>
void main()
{
int a,b,t;
printf(“enter value for a,b”);
scanf(“%d %d”,&a,&b);
printf(“before swapping a=%d   b=%d”,a,b);
a=a+b;
b=a-b;
a=a-b;
printf(“after swapping a=%d    b=%d”,a,b);
}

Input:- enter value for a,b
                a=5,   b=6
Output:- after swapping a=6   b=5

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