C/leetcode/src/9.c

bool isPalindrome(int x){
    if(x < 0 || (x % 10 == 0 && x != 0)) {
        return false;
    }

    int revertedNumber = 0;
    while(x > revertedNumber) {
        revertedNumber = revertedNumber * 10 + x % 10;
        x /= 10;
    }

    return x == revertedNumber || x == revertedNumber/10;
}