int isPalindrome(char *str, int len)
{
    int i = 0, j = len -1;
    while (i <= j)
    {
        if (str[i] == ' ')
        {
            i++;
            continue;
        }

        if (str[j] == ' ')
        {
            j--;
            continue;
        }

        if (str[i] != str[j]) return 0;
        i++;
        j--;
    }

    return 1;
}