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Reversing three digit number

#include<stdio.h>
#include<conio.h>
{
clrscr();
int num = 123;
printf("Original Number=%d",num);
int d1 = num%10;
num = num/10;
int d2 = num%10;
num = num/10;
int d3 = num%10;
int revnum = d1*100+d2*10+d3;
printf("Reverse Number=%d",revnum);
getch();
}

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#include<stdio.h> #include<conio.h> void main() { clrscr(); int ,num,rev=0,rem; printf("Enter the number:"); scanf("%d",&num); while(num!=0) { rem=num%10; rev=rev*10+rem; num=num/10; } printf("Reverse of given Number is:%d",rev); getch(); }