描述： Given two integersnandk, return all possible combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution is:[ [2,4], [3,4], [2...
分类：
其他好文 时间：
2014-07-16 19:29:31
阅读次数：
166
A. LCISTime Limit:2000msCase Time Limit:2000msMemory Limit:32768KB64-bit integer IO format:%I64d Java class name:MainGiven n integers.You have two ope...
分类：
其他好文 时间：
2014-07-13 23:34:39
阅读次数：
272
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a link...
分类：
其他好文 时间：
2014-07-13 18:20:52
阅读次数：
202
Given two sorted integer arrays A and B, merge B into A as one sorted array.
Note:
You may assume that A has enough space (size that is greater or equal to m + n) to hold additional elements from ...
分类：
其他好文 时间：
2014-07-13 17:21:40
阅读次数：
208
Given two binary trees, write a function to check if they are equal or not.
Two binary trees are considered equal if they are structurally identical and the nodes have the same value.
/**
* Defin...
分类：
其他好文 时间：
2014-07-13 15:50:25
阅读次数：
158
Say you have an array for which the ith element is the price of a given stock on day i.
Design an algorithm to find the maximum profit. You may complete at most two transactions.
Note:
You ma...
分类：
其他好文 时间：
2014-07-13 13:55:14
阅读次数：
305
Snowflake Snow Snowflakes
Time Limit: 4000MS
Memory Limit: 65536K
Total Submissions: 30512
Accepted: 8024
Description
You may have heard that no two snowflakes are al...
分类：
其他好文 时间：
2014-07-13 13:45:20
阅读次数：
235
Design an algorithm and write code to find the first common ancestory of two nodes in a binary tree. Avoid storing additional nodes in data structure....
分类：
其他好文 时间：
2014-07-13 13:24:21
阅读次数：
279
You have two very large binary trees: T1, with millions of nodes, and T2, with hundreds of nodes. Create an algorithm to decide if T2 is a subtree of ...
分类：
其他好文 时间：
2014-07-13 13:04:00
阅读次数：
186
Problem Description
A ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separately, and the sum of numbers in two adjacent circles should be a prime...
分类：
其他好文 时间：
2014-07-12 16:42:15
阅读次数：
271
