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Number of 1 Bits
Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as theHamming weight).For example, the 32-bit in...
分类:其他好文   时间:2015-03-27 23:46:17    阅读次数:206
LeetCode[Dynamic Programming]: Maximum Product Subarray
Find the contiguous subarray within an array (containing at least one number) which has the largest product.  For example, given the array [2,3,-2,4],  the contiguous subarray [2,3] has the largest ...
分类:其他好文   时间:2015-03-27 22:28:08    阅读次数:211
初探oracle删除重复记录,只保留rowid最小的记录
如题,初探oracle删除重复记录,只保留rowid最小的记录(rowid可以反映数据插入到数据库中的顺序)一、删除重复记录可以使用多种方法,如下只是介绍了两种方法(exist和in两种)。1.首先创建一个测试表。create table my_users( id number, use...
分类:数据库   时间:2015-03-22 10:30:37    阅读次数:244
URAL 1723. Sandro's Book
1723. Sandro's Book Time limit: 0.5 second Memory limit: 64 MB It's been quite a number of years since Lich Sandro retired. Sometimes in the evenings, when he feels especially lonely, he ...
分类:其他好文   时间:2015-03-22 09:07:52    阅读次数:147
基础加强第三天 练习总结
5、数字转大写案例 #region 练习:把123转换为:壹贰叁。Dictionary             //提示用户输入             Console.WriteLine("请输入一个数");             //接受用户的输入             string number = Console.ReadLine();             string...
分类:其他好文   时间:2015-03-22 06:56:51    阅读次数:154
LeetCode 179: Largest Number
题目描述:Given a list of non negative integers, arrange them such that they form the largest number.For example, given [3, 30, 34, 5, 9], the largest form...
分类:其他好文   时间:2015-03-22 01:38:59    阅读次数:105
LeetCode Algorithm 06
The string"PAYPALISHIRING"is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font fo...
分类:其他好文   时间:2015-03-22 01:37:27    阅读次数:143
LeetCode Excel Sheet Column Number
Excel Sheet Column Number Total Accepted: 19547 Total Submissions: 52851 My Submissions Question Solution Related to question Excel Sheet Column TitleGiven a column title as appear in an Excel sheet,...
分类:其他好文   时间:2015-03-21 23:00:13    阅读次数:212
11. SQL -- 约束、Check、触发器的执行顺序
让我们看看约束、Check和触发器在这个过程中的先后顺序,或许能加深些对事务的理解。CREATETABLETestTable(IDINTCONSTRAINTPK_TestTable_idPRIMARYKEY,UniqueIDINTUNIQUE,NumberINTCHECK(Number>=10ANDNumber<=100),NonNULLINTNOTNULL);CREATETABLELogTable(LogDescVARCH..
分类:数据库   时间:2015-03-21 21:28:44    阅读次数:229
【LeetCode】Two Sum
Two SumGiven an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the...
分类:其他好文   时间:2015-03-21 19:49:32    阅读次数:121
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