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Program to check palindrome using recursion

Ankit Deshmukh answered on May 29, 2022 Popularity 9/10 Helpfulness 2/10

answer Program to check palindrome using recursion

related palindrome recursion

Program to check palindrome using recursion

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#include <stdio.h>
#include <conio.h>
int reverse(int num);
int isPalindrome(int num);
int main()
{
    int num;
    printf("Enter a number: ");
    scanf("%d", &num);
if(isPalindrome(num) == 1)
{
 printf("the given number is a palindrome");
    }
    else
    {
        printf("the given number is not a palindrome number");
   }
    return 0;
}

int isPalindrome(int num)
{
    if(num == reverse(num))
    {
        return 1;
    }
    return 0;
}
int reverse(int num)
{
int rem;
    static int sum=0;
    if(num!=0){
            rem=num%10;
            sum=sum*10+rem;
            reverse(num/10);
    }
        else
             return sum;
    return sum;
}

Popularity 9/10 Helpfulness 2/10 Language c

Source: www.interviewbit.com

Tags: c palindrome recursion using

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Contributed on Oct 04 2022

Ankit Deshmukh

0 Answers Avg Quality 2/10

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palindrome recursion

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import java.util.Scanner;
public class Palindromes
{

    public static boolean isPal(String s)
    {
        if(s.length() == 0 || s.length() == 1)
            // if length =0 OR 1 then it is
            return true; 
        if(s.charAt(0) == s.charAt(s.length()-1))
            // check for first and last char of String:
            // if they are same then do the same thing for a substring
            // with first and last char removed. and carry on this
            // until you string completes or condition fails
            return isPal(s.substring(1, s.length()-1));

        // if its not the case than string is not.
        return false;
    }

    public static void main(String[]args)
    {
        Scanner sc = new Scanner(System.in);
        System.out.println("type a word to check if its a palindrome or not");
        String x = sc.nextLine();
        if(isPal(x))
            System.out.println(x + " is a palindrome");
        else
            System.out.println(x + " is not a palindrome");
    }
}

Popularity 9/10 Helpfulness 2/10 Language whatever

Source: stackoverflow.com

Tags: palindrome p

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Contributed on May 29 2022

Bad Batfish

0 Answers Avg Quality 2/10

Program to check palindrome using recursion

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