function checkmemory%Copyright (c) 2014,Lv Qi%All
rights reserved.%%Redistribution and use in source and binary forms, with or
without modification, a...
分类:
其他好文 时间:
2014-05-10 20:07:52
阅读次数:
413
Given a binary tree containing digits from 0-9
only, each root-to-leaf path could represent a number.An example is the
root-to-leaf path 1->2->3 which...
分类:
其他好文 时间:
2014-05-05 23:55:36
阅读次数:
407
Given two binary strings, return their sum
(also a binary string).For example,a ="11"b
="1"Return"100".思路:一个二进制字符串相加;首先从字符串的末尾开始,先二进制字符转化为数字,然后再相加;然后将...
分类:
其他好文 时间:
2014-05-05 23:10:15
阅读次数:
319
# Definition for a binary tree node# class
TreeNode:# def __init__(self, x):# self.val = x# self.left = None# self.right
...
分类:
其他好文 时间:
2014-05-05 22:56:23
阅读次数:
419
很锻炼DP/recursive思路的一道题,个人感觉DP/recursive算是比较难写的题目了。这道题解法的巧妙之处在于巧用-1,并且使用临时存储,节省了很多开支。这道题同时也在Career
Cup上面出现过这道题我两次调试通过,第一次错是因为input{}, output false, expe...
分类:
其他好文 时间:
2014-05-05 22:45:10
阅读次数:
352
1 /** 2 * Definition for binary tree 3 * public
class TreeNode { 4 * int val; 5 * TreeNode left; 6 * TreeNode right; 7 *
TreeNo...
分类:
其他好文 时间:
2014-05-05 22:44:13
阅读次数:
328
1 /** 2 * Definition for binary tree 3 * public
class TreeNode { 4 * int val; 5 * TreeNode left; 6 * TreeNode right; 7 *
TreeNo...
分类:
其他好文 时间:
2014-05-05 22:43:14
阅读次数:
313
Link:http://oj.leetcode.com/problems/balanced-binary-tree/Given a binary tree,
determine if it is height-balanced.For this problem, a height-balanced ...
分类:
其他好文 时间:
2014-05-05 22:29:55
阅读次数:
382
Given a binary tree, determine if it is a valid
binary search tree (BST).Assume a BST is defined as follows:The left subtree of
a node contains only n...
分类:
其他好文 时间:
2014-05-02 15:03:57
阅读次数:
386
Given a binary tree, determine if it is
height-balanced.For this problem, a height-balanced binary tree is defined as a
binary tree in which the depth...
分类:
其他好文 时间:
2014-05-02 07:05:08
阅读次数:
311