#include<stdio.h> #include<conio.h> void main() { int a=20,

How can u swap 2 variables in C without using 3rd variable?

Question Posted / rahul

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Answer Posted / rahul

#include<stdio.h>
#include<conio.h>
void main()
{
int a=20,b=30,c;
clrscr();
a=a+b;
b=b+a;
c=a+b;
c=b-a;
printf("swapping two variables using 3rd variable");
scanf("%d%d%d,a,b,c);
getch();
}

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