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564. find the closest palindrome solution javascript

Kurniadi - answered on August 24, 2024 Popularity 1/10 Helpfulness 1/10

answer 564. find the closest palindrome solution javascript

564. find the closest palindrome solution javascript

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// JavaScript Program to find the closest Palindrome
// number

// function check Palindrome
function isPalindrome(n)
{
    for (let i = 0; i < Math.floor(n.length / 2); i++)
        if (n[i] != n[n.length - 1 - i])
            return false;
    return true;
}

// convert number into String
function convertNumIntoString(num)
{

    // base case:
    if (num == 0)
        return "0";

    let Snum = num + '';
    return Snum;
}

// function return closest Palindrome number
function closestPalindrome(num)
{

    // case1 : largest palindrome number
    // which is smaller to given number
    let RPNum = num - 1;

    while (!isPalindrome(convertNumIntoString(Math.abs(RPNum))))
        RPNum--;

    // Case 2 : smallest palindrome number
    // which is greater than given number
    let SPNum = num + 1;

    while (!isPalindrome(convertNumIntoString(SPNum)))
        SPNum++;

    // check absolute difference
    if (Math.abs(num - RPNum) > Math.abs(num - SPNum))
        return SPNum;
    else
        return RPNum;
}

// Driver program to test above function
let num = 121;
console.log(closestPalindrome(num),"</br>");
    
// This code is contributed by prophet1999

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: www.geeksforgeeks.org

Tags: closest find javascript palindrome solution

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Contributed on Aug 24 2024

Kurniadi -

0 Answers Avg Quality 2/10

564. find the closest palindrome solution javascript

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