Swapping of Two Numbers in C or C Program to Swap Two Numbers or C program to Swap two numbers without using a third variable #include <stdio.h> #include <conio.h> void main() { int x, y, temp; clrscr(); // to clear screen printf("Enter the value of x and y\n"); scanf("%d%d", &x, &y); printf("Before Swapping\nx = %d\ny = %d\n",x,y); temp = x; x = y; y = temp; /* without using temp variable, this can be used let x=4 and y=5 x = x + y ; x=x+y => x=4+5 => x=9 y = x - y ; y=x-y => y=9-5 => y=4 value changed x = x - y ; x=x-y => x=9-4 => x=5 value changed */ printf("After Swapping\nx ...