我用Java刷 leetcode 7. 整数反转

Posted 2021-06-02 深林无鹿

这里有leetcode题集分类整理！！！

class Solution {
    public int reverse(int x) {
        if (x == 0) return 0;
        int res = 0;
        while(x != 0) {
            if (res > Integer.MAX_VALUE / 10 || res < Integer.MIN_VALUE / 10) return 0;
            res = res * 10 + x % 10;
            x /= 10;
        }
        return res;
    }
}