680. 验证回文字符串 Ⅱ

680. 验证回文字符串 Ⅱ

class Solution {
    public boolean validPalindrome(String s) {
        int left = 0;
        int right = s.length() - 1;
        while (left <= right) {
            if (s.charAt(left) == s.charAt(right)) {
                ++left;
                --right;
            } else {
                return judge(s, left, right - 1) || judge(s, left + 1, right);
            }
        }
        return true;
    }
    private boolean judge(String s, int left, int right) {
        while (left <= right) {
            if (s.charAt(left) == s.charAt(right)) {
                ++left; 
                --right;
            } else {
                return false;
            }
        }
        return true;
    }
}