main() { int a=20,b=30; clrscr(); a=a+b; b=a-b; a=a-b; printf("

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

Question Posted / sj

Answer Posted / sj

main()
{
int a=20,b=30;
clrscr();
a=a+b;
b=a-b;
a=a-b;
printf("%d%d",a,b);
getch();
}

Is This Answer Correct ?

38 Yes

4 No

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