摘要：
The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integernrepresenting the total number... 阅读全文
posted @ 2015-02-09 13:57
Vae永Silence
阅读(134)
评论(0)
推荐(0)
摘要：
Given a collection of integers that might contain duplicates,S, return all possible subsets.Note:Elements in a subset must be in non-descending order.... 阅读全文
posted @ 2015-02-09 13:56
Vae永Silence
阅读(151)
评论(0)
推荐(0)
摘要：
A message containing letters fromA-Zis being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26Given an encoded message conta... 阅读全文
posted @ 2015-02-09 13:55
Vae永Silence
阅读(172)
评论(0)
推荐(0)
摘要：
Reverse a linked list from positionmton. Do it in-place and in one-pass.For example:Given1->2->3->4->5->NULL,m= 2 andn= 4,return1->4->3->2->5->NULL.No... 阅读全文
posted @ 2015-02-09 13:54
Vae永Silence
阅读(140)
评论(0)
推荐(0)
摘要：
Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given"25525511135",return["255.2... 阅读全文
posted @ 2015-02-09 13:53
Vae永Silence
阅读(198)
评论(0)
推荐(0)
摘要：
Given a binary tree, return theinordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[1,3,2].Note... 阅读全文
posted @ 2015-02-09 13:52
Vae永Silence
阅读(121)
评论(0)
推荐(0)
摘要：
Givenn, generate all structurally uniqueBST's(binary search trees) that store values 1...n.For example,Givenn= 3, your program should return all 5 uni... 阅读全文
posted @ 2015-02-09 13:51
Vae永Silence
阅读(172)
评论(0)
推荐(0)
摘要：
Givenn, how many structurally uniqueBST's(binary search trees) that store values 1...n?For example,Givenn= 3, there are a total of 5 unique BST's. 1... 阅读全文
posted @ 2015-02-09 13:50
Vae永Silence
阅读(170)
评论(0)
推荐(0)
摘要：
Givens1,s2,s3, find whethers3is formed by the interleaving ofs1ands2.For example,Given:s1="aabcc",s2="dbbca",Whens3="aadbbcbcac", return true.Whens3="... 阅读全文
posted @ 2015-02-09 13:49
Vae永Silence
阅读(186)
评论(0)
推荐(0)
摘要：
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... 阅读全文
posted @ 2015-02-09 13:48
Vae永Silence
阅读(130)
评论(0)
推荐(0)
浙公网安备 33010602011771号