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//program to input a number and print reverse of the number using do while loop #include<stdio.h> #include<conio.h> void main() { int num,digit,rev=0; clrscr(); printf("\nenter the number"); scanf("%d",&num); do { digit=num%10; rev=(rev*10)+digit; num=num/10; }while(num!=0); printf("the reverse of number is %d",rev); getch(); }