leetcode做题记录0020
本文共 300 字，大约阅读时间需要 1 分钟。
leetcode 0020
说明
只是为了记录一下，不求多快，也不深究。
会简要描述思路，代码中不写注释。
如碰到不会做的用了别人代码会在博客中标出。
题目描述
结果
思路
栈
代码
class Solution { public boolean isValid(String s) { if(s.length() == 0) { return true; } LinkedList stack = new LinkedList (); stack.add(s.charAt(0)); for(int i = 1;i 转载地址：http://erhe.baihongyu.com/
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