【题目】
Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length.
Do not allocate extra space for another array, you must do this in place with constant memory.
For example,
Given input array A ...
分类：
其他好文 时间：
2014-05-18 18:25:19
阅读次数：
272
下面我们来了解如何实现一个自定义的迭代器，然后再开始慢慢理解迭代器的内部工作原理。先来看一个官方的例子：
<?php
class myIterator implements Iterator {
private $position = 0;
private $array = array(
"first_element",
"second_element",
"last_element",
);...
分类：
Web程序 时间：
2014-05-18 13:58:23
阅读次数：
404
4Sum
Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array which gives the sum of target....
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其他好文 时间：
2014-05-18 13:49:09
阅读次数：
306
【题目】
Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution.
For example, given array S = {...
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其他好文 时间：
2014-05-18 10:37:57
阅读次数：
269
【题目】
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity.
【题意】
合并K个有序链表
【思路】
归并
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.
For ...
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其他好文 时间：
2014-05-18 09:05:40
阅读次数：
255
【题目】
Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array which gives the sum of target.
Note:
Elements in a quadruplet (a,b,c,d) must be in non-descending ord...
分类：
其他好文 时间：
2014-05-18 08:46:04
阅读次数：
227
Point pos(100, 100); //start point
m_animSprite->setPosition(pos);
int count = 8; float radius = 50.f; float angle = 360.f/count; auto array = PointArray::create(count + 1); Point pt0(r...
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其他好文 时间：
2014-05-18 07:02:31
阅读次数：
250
3SumClosest
Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution....
分类：
其他好文 时间：
2014-05-18 05:57:48
阅读次数：
244
【题目】
Write a function to find the longest common prefix string amongst an array of strings.
【题意】
求一组字符串的最长公共前缀
【思路】
使用归并思想求解
要求字符串[1,2,..,k,k+1,...n]的最大公共前缀，先分别求[1,2,...k]和[k+1,...,n]的公共前缀...
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其他好文 时间：
2014-05-18 05:17:53
阅读次数：
232
【题目】
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero.
Note:
Elements in a triplet (a,b,c) must be in non-descending order. (ie, a ≤ b ≤ c)
The so...
分类：
其他好文 时间：
2014-05-18 03:15:50
阅读次数：
287
