【题目】
Given a singly linked list L: L0→L1→…→Ln-1→Ln,
reorder it to: L0→Ln→L1→Ln-1→L2→Ln-2→…
You must do this in-place without altering the nodes' values.
For example,
Given {1,2,3,4}, reorder it to {1,4,2,3}.
【题意】
给定一个链表L: L0→L1→…→Ln-1→Ln,对他重新排序成L...
分类：
其他好文 时间：
2014-06-30 10:11:14
阅读次数：
158
【题目】
Given a binary tree, return the postorder traversal of its nodes' values.
For example:
Given binary tree {1,#,2,3},
1
2
/
3
return [3,2,1].
Note: Recursive solution is trivial, could you do it iteratively?
【题意】
非递归实现后续遍...
分类：
其他好文 时间：
2014-06-30 10:10:10
阅读次数：
177
【题目】
Given a string s and a dictionary of words dict, determine if s can be segmented into a space-separated sequence of one or more dictionary words.
For example, given
s = "leetcode",
dict = ["leet", "code"].
Return true because "leetcode" can be segm...
分类：
其他好文 时间：
2014-06-30 09:02:26
阅读次数：
276
题目：
Given numRows, generate the first numRows of Pascal's triangle.
For example, given numRows = 5,
Return
[
[1],
[1,1],
[1,2,1],
[1,3,3,1],
[1,4,6,4,1]
]
分析：打印杨辉三角。numRows...
分类：
其他好文 时间：
2014-06-30 06:25:24
阅读次数：
317
【题目】
Given a binary tree, return the preorder traversal of its nodes' values.
For example:
Given binary tree {1,#,2,3},
1
2
/
3
return [1,2,3].
Note: Recursive solution is trivial, could you do it iteratively?
【题意】
非递归返回先序遍历...
分类：
其他好文 时间：
2014-06-30 06:21:18
阅读次数：
334
【题目】
Given a string s and a dictionary of words dict, add spaces in s to construct a sentence where each word is a valid dictionary word.
Return all such possible sentences.
For example, given
s = "catsanddog",
dict = ["cat", "cats", "and", "sand", "dog...
分类：
其他好文 时间：
2014-06-30 00:51:41
阅读次数：
295
题目
Given an absolute path for a file (Unix-style), simplify it.
For example,
path = "/home/", => "/home"
path = "/a/./b/../../c/", => "/c"
Corner Cases:
Did you consider the case w...
分类：
其他好文 时间：
2014-06-29 23:19:26
阅读次数：
223
题目
Given an unsorted array of integers, find the length of the longest consecutive elements sequence.
For example,
Given [100, 4, 200, 1, 3, 2],
The longest consecutive elements sequence...
分类：
其他好文 时间：
2014-06-29 22:16:48
阅读次数：
239
很多时候要用到android端调用webservice服务， 下面例子就是调用webservice 以及对流的多种方式处理；
package com.example.android_webservice;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOExcep...
分类：
移动开发 时间：
2014-06-29 22:06:29
阅读次数：
242
题目
Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n).
For example,
S = "ADOBECODEBANC"
T = "ABC"
Minimum wi...
