Answer / jhansi rani attuluri

#include<stdio.h>
int sum(int a,int b);
int sum(int a,int b)
{

return a+b;
}
main()
{
int a,b,c;
printf("enter the value for a,b:");
scanf("%d %d",&a,&b);
printf("sum is %d\n",sum(a,b));
}

write a origram swaoing valu without 3rd variable

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