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杭电1232(图—并查集)
畅通工程Time Limit: 4000/2000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 30798Accepted Submission(s): 16193Problem Desc...
分类:其他好文   时间:2014-08-17 10:18:32    阅读次数:134
UVA - 12005 Find Solutions (最小因子分解)
Description   Find Solutions  Look at the following equation: c = ab - + 1 Now given the value of c, how many possible values of and a and b are there (a and b must be ...
分类:其他好文   时间:2014-08-16 22:33:01    阅读次数:287
LeetCode "Container With Most Water" - GREEDY?
O(n^2) is a naive solution. As rule of thumb, there must be O(n) soluion. Yes - greedy (WHY?)class Solution {public: int maxArea(vector &height) ...
分类:其他好文   时间:2014-08-16 15:04:30    阅读次数:153
Leetcode--Reorder List
Problem Description: Given a singly linked list L: L0→L1→…→Ln-1→Ln, reorder it to: L0→Ln→L1→Ln-1→L2→Ln-2→… You must do this in-place without altering the nodes' values. For example, Given...
分类:其他好文   时间:2014-08-15 22:34:39    阅读次数:330
Subsets II
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....
分类:其他好文   时间:2014-08-15 21:08:29    阅读次数:212
ORACLE SQL单行函数(二)【weber出品必属精品】
11.dual:虚表,任何用户都可以使用,表结构如下:SQL> desc dual Name Null? Type ----------------------------------------- -------- -...
分类:数据库   时间:2014-08-15 20:53:59    阅读次数:392
[LeetCode] Subsets (bfs的vector实现)
Given a set of distinct integers, S, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set must not c...
分类:其他好文   时间:2014-08-15 17:18:39    阅读次数:177
thinkphp条件查询和模糊查询的一些方法
1 #文章管理 2 public function adminArticle(){ 3 $adminArticle=M("article"); 4 $arr_seach=$this->seach($adminArticle,10,"now desc"...
分类:Web程序   时间:2014-08-15 14:31:18    阅读次数:356
LeetCode "Largest Rectangle in Histogram" - TRICKY MONO-QUEUE
I got a DP solution first which is O(n^2). Apparently it is not a optimized one - think about: it is linear value space. There must be O(n) solution.A...
分类:其他好文   时间:2014-08-15 05:04:07    阅读次数:249
oracle学习笔记
描述一个表用 desc employees过滤重复的部门 select distinct department_id from employees别名的三种方式: 1、空格 2、加as 3、" "(多个单词组成的别名必须加空格,要么用下划线分开)条件匹配日期的: where to_char(date...
分类:数据库   时间:2014-08-14 23:37:06    阅读次数:455
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