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leetcode——Container With Most Water
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such tha...
分类:其他好文   时间:2015-02-23 16:38:13    阅读次数:141
Gambler's Ruin Problem and 3 Solutions
In my stochastic processes class, Prof Mike Steele assigned a homework problem to calculate the ruin probabilities for playing a game where you with $...
分类:其他好文   时间:2015-02-23 09:36:56    阅读次数:382
C#范型不会用,求助~
using Dapper;using Dapper.Contrib.Extensions;using System.Data.SqlClient;using System.Configuration;namespace Orm{ public class RecordBase where T ...
分类:Windows程序   时间:2015-02-22 16:54:32    阅读次数:164
Leetcode: Trapping Rain Water
Problem: Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. For example,  Given [0,1,0,2,1,...
分类:移动开发   时间:2015-02-22 14:39:33    阅读次数:144
poj 1422 Air Raid 最少路径覆盖
题目链接:http://poj.org/problem?id=1422Consider a town where all the streets are one-way and each street leads from one intersection to another. It is als...
分类:其他好文   时间:2015-02-22 13:22:29    阅读次数:233
[LeetCode]Find Peak Element
A peak element is an element that is greater than its neighbors. Given an input array where num[i] ≠ num[i+1], find a peak element and return its index. The array may contain multiple peaks,...
分类:其他好文   时间:2015-02-21 21:04:00    阅读次数:193
WHERE条件用不到索引的情况下如何删除大表记录?
如果开发人员在做表设计阶段没有考虑到大表历史数据的维护性,随着数据量越来越大,表就越来越难管理和维护.连创建索引的失败都可能会失败(因为创建索引要利用临时表空间的的排序,当临时表空间不够大创建索引的动作就会报错).如果过滤条件用不到索引,每成功完成一次delete操作就需要全表扫描一次...那么几十GB的大表,情何以堪...? 那么有什么方法可以解决这种问题吗?当然改造生产表是可以的(利用DBM...
分类:其他好文   时间:2015-02-20 09:45:55    阅读次数:157
UVa 10474 Where is the Marble
题意:给出一列数,先排序,再查找学习了sort函数,lower_bound函数sort:可以给任意对象排序(包括自己定义的)(前提是定义好了‘ 2 #include 3 #include 4 #include 5 using namespace std; 6 7 const int...
分类:其他好文   时间:2015-02-19 13:58:59    阅读次数:117
公司考核题-(ORACLE篇一)
今天无聊翻腾刚毕业时的电脑,发现11年在单位实习时的一些练习题及考核试题和答案,现在在此记录一下,方便以后查阅。 考核一: --1、列出薪金比"SMITH"多的所有雇员      select * from emp where sal > (select sal from emp where ename='SMITH'); --2、找出佣金高于薪金60%的雇员      select...
分类:数据库   时间:2015-02-18 17:40:41    阅读次数:250
[LeetCode] Convert Sorted List to Binary Search Tree 将有序链表转为二叉搜索树
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.这道题是要求把有序链表转为二叉搜索树,和之前那道Convert Sorted Ar...
分类:其他好文   时间:2015-02-18 08:24:13    阅读次数:160
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