Answer Posted / guest

# include "stdio.h"
main()
{
int a,b;
printf("enter two numbers for swaping");
scanf("%d%d",&a,&b);
a=a+b;
b=a-b;
a=a-b;
printf("a is %d",a);
printf("b is %d",b);
} output:- takea,b value is 2,3 and give answers is3,2

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