C example part 18 check palindrome number
#include<stdio.h> main()
{ int dummy,n,rev=0,x; printf("Enter a number\n"); scanf("%d",&n); dummy=n; while(n>0) { x=n%10; rev=rev*10+x; n=n/10; } if(dummy==rev) printf("The given number %d is a palindrome\n",rev); else printf("The given number %d is not a palindrome\n",rev); }
Enter a number
343
The given number 343 is a palindromeExplanation:
- This is same as reversing a number which is Program 9 . To print reverse of a number
- Just we used dummy variable to check whether the reversed number is same as the original one(i.e. 'n').
- for example if n=321=dummy then the reverse rev=123.
- As dummy is not equal to rev then the output is not a palindrome.(Here we can't use 'n' as it become 0 at the end of the loop which is why we are using a variable 'dummy' for temporary storage of the value).