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

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

Question Posted / deepa

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Answer Posted / deepa

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

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