Programming
Aptitude
Syllabus
Interview Preparation
Interview Exp.
Off Campus
Program to Display Palindrome
Palindrome of Given Number
We will write a C program to display the palindrome of the given number and the number will be entered by the user. This will help to understand the basic structure of programming. In this program , we will display the palindrome number of given numbers easily by using proper syntax and algorithms.
Working of Program :
In the program, we will require some numbers from the user to display the palindrome number of the given numbers.
Important Note for Palindrome:
- In palindrome number, the number will always be same after reversing that numbers.
For example: 323, 4554, 989, 78987…
Problem 1
Write a program to display that the given number is palindrome or not by using while() loop.
- Firstly, we have to enter the any number.
- Then print that number is palindrome or not.
Code
#include<stdio.h>
int main ()
{
int n, r, rev = 0, a;
printf ("Enter the numer = ");
scanf ("%d", &n);
a = n;
while (n > 0)
{
r = n % 10;
rev = (rev * 10) + r;
n = n / 10;
}
if (a == rev)
printf ("The number is a palindrome number. ");
else
printf ("The number is not a palindrome.");
return 0;
}
Output
Enter the numer = 454 The number is a palindrome number.
Note:
In the following program we will display the palindrome of the given number using do-while() loop.
Syntax for do – while() loop:
do
{
// Statements
// Increment / Decrement
}
while(condition)
Problem 2
Write a program to display that the given number is palindrome or not by using do – while() loop.
- Firstly, we have to enter the any number.
- Then print that number is palindrome or not.
Code
#include<stdio.h>
int main ()
{
int n, r, rev = 0, a;
printf ("Enter the numer = ");
scanf ("%d", &n);
a = n;
do
{
r = n % 10;
rev = (rev * 10) + r;
n = n / 10;
}
while (n > 0);
if (a == rev)
printf ("The number is a palindrome number. ");
else
printf ("The number is not a palindrome.");
return 0;
}
Output
Enter the numer = 1234 The number is not a palindrome.
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