I want to be a good teacher, so at least I need to remember all the student names. However, there are
too many students, so I failed. It is a shame, so I don’t want my students to know this. Whenever...
分类：
其他好文 时间：
2016-05-13 01:05:11
阅读次数：
199
Given a positive integer n, find the least number of perfect square numbers (for example, 1,
4, 9, 16, ...) which sum to n.
For example, given n = 12, return 3 because 12
= 4 + 4 + 4; given n =...
分类：
其他好文 时间：
2016-05-12 17:25:26
阅读次数：
106
Given an array nums containing n + 1 integers where each integer is between 1 and
n (inclusive), prove that at least one duplicate number must exist. Assume that there is only one duplicate number, f...
分类：
其他好文 时间：
2016-05-12 14:11:09
阅读次数：
128
link: http://www.donaldsimpson.co.uk/2013/03/18/jenkins-slave-nodes-using-the-swarm-plugin/ I’ve been trying out a new (to me at least) way to add a J ...
分类：
其他好文 时间：
2016-05-11 11:26:58
阅读次数：
511
Integer Break Given a positive integer n, break it into the sum of at least two positive integers and maximize the product of those integers. Return t ...
分类：
其他好文 时间：
2016-05-10 20:38:38
阅读次数：
136
1、 概述 LCA（Least Common Ancestors），即最近公共祖先，是指这样一个问题：在有根树中，找出某两个结点u和v最近的公共祖先（另一种说法，离树根最远的公共祖先）。 RMQ（Range Minimum/Maximum Query），即区间最值查询，是指这样一个问题：对于长度为n ...
分类：
其他好文 时间：
2016-05-10 09:41:35
阅读次数：
246
题目链接: https://leetcode.com/problems/additive-number/
Additive number is a string whose digits can form additive sequence.
A valid additive sequence should contain at least three numbers. Excep...
分类：
其他好文 时间：
2016-05-10 07:08:05
阅读次数：
174
题目为： Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [?2,1,?3,4, ...
分类：
其他好文 时间：
2016-05-09 14:15:45
阅读次数：
149
Nginx的负载均衡支持4种算法，round-robin、least-connected、ip-hash、和weightd。round-robin
round-robin的意思是循环轮询。Nginx最简单的负载均衡配置如下：http
{
upstreamapp1{
server10.10.10.1;
server10.10.10.2;
}
server{
listen80;
location/{
proxy_passhttp://ap..
分类：
其他好文 时间：
2016-05-09 07:24:20
阅读次数：
179
java.lang.IllegalArgumentException: System memory 100663296 must be at least 4.718592E8. Please use a larger heap size.
在Eclipse里开发Spark项目，尝试直接在spark里运行程序的时候，遇到下面这个报错：
很明显，这是JVM申请的memory不够...
分类：
其他好文 时间：
2016-05-07 10:48:59
阅读次数：
2276
