【题目】
Given a linked list, remove the nth node from the end of list and return its head.
For example,
Given linked list: 1->2->3->4->5, and n = 2.
After removing the second node from the end, the linked list becomes 1->2->3->5.
Note:
Given n will ...
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其他好文 时间:
2014-05-18 18:48:03
阅读次数:
269
题目:给一个数组和给定的目标值,要求在数组里找出三个元素,这三个元素的和最接近目标值,当然等于是最好的。
用3sum的方法,把判定条件作些修改。
int twoSum(vector &num, int start, int target)
{
if(num.size() = num.size())
return -target;
int head = start;
int t...
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其他好文 时间:
2014-05-18 10:49:12
阅读次数:
217
【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
程序代码:
bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !CCLayer::init() )
{
return false;
}
CCSize visibleSize = CCDirector::s...
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其他好文 时间:
2014-05-18 10:10:11
阅读次数:
299
【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...
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其他好文 时间:
2014-05-18 08:46:04
阅读次数:
227
【题目】
Given a digit string, return all possible letter combinations that the number could represent.
A mapping of digit to letters (just like on the telephone buttons) is given below.
Input:Digit string "23"
Output: ["ad", "ae", "af", "bd", "be", "bf",...
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其他好文 时间:
2014-05-18 07:30:12
阅读次数:
340
由于工作上的需要,把数据库中备份的联系人添加到通讯录,一般都有几百条记录,插入一条数据系统默认commit一次,这样效率就降低了,如果把所有的数据都添加进去后再commit效率就不一样,这就需要事务
没有添加事务的方法,每次添加一条记录
/**
* 单条添加数据
*
* @param contacts
* @return
*/
public boolean add(T...
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移动开发 时间:
2014-05-18 07:03:31
阅读次数:
629
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....
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其他好文 时间:
2014-05-18 05:57:48
阅读次数:
244
【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...
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其他好文 时间:
2014-05-18 03:15:50
阅读次数:
287