C program to swap the values of two variables without using a third variable.
C Program
#include <stdio.h> #include <conio.h> void main() { int a,b; clrscr(); printf("\nENTER TWO NUMBERS FOR a AND b:\n"); scanf("%d %d",&a,&b); printf("\nBEFORE SWAPING THE VALUE OF a=%d AND b=%d",a,b); a=a+b; b=a-b; a=a-b; printf("\nAFTER SWAPING THE VALUE OF a=%d AND b=%d",a,b); getch(); }