C Language
#include<stdio.h> #include<conio.h> void main( ) { int n, r, s = 0; clrscr( ); printf("Enter any Number = "); scanf("%d", &n); while (n > 0) { r = n % 10; s = s * 10 + r; n = n / 10; } printf ("Reverse = % d", s); getch( ); } /*OUTPUT*/ Enter any Number = 45 Reverse = 54