9-palindrome-number

DevGod

Elf Vtuber

Caution

DevGod needs to write an editorial for this problem!

c

bool isPalindrome(int x) {
    if(x < 0){return false;}
    unsigned int rev = 0;
    int temp = x;
    while(temp>0){
        rev = rev*10 + (temp%10);
        temp = temp/10;
    }
    return rev == x;
}

js

/**
 * @param {number} x
 * @return {boolean}
 */
var isPalindrome = function(x) {
    if(x<0){return false;}

    let rev = 0;
    let temp = x;
    while(temp>0){
        let newDigit = temp%10;
        rev = rev*10 + newDigit;
        temp = Math.floor(temp/10);
    }

    return rev === x;
};