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POJ 1159-Palindrome(dp_回文串+滚动数组)
Palindrome Time Limit:3000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Description A palindrome is a symmetrical string, that is, a string read identic...
分类:编程语言   时间:2015-01-29 10:37:03    阅读次数:177
Hadoop阅读笔记(三)——深入MapReduce排序和单表连接
本篇主要介绍如何使用MapReduce执行数据排序,相对于传统排序,MapReduce面临哪些问题又有哪些优势,详细了解Map阶段和Reduce阶段如何衔接,Partition类如何使用;MapReduce如何进行单表连接等问题;通过打印程序执行过程信息,一目了然了解MapReduce执行的每一步。
分类:编程语言   时间:2015-01-28 23:48:56    阅读次数:355
LeetCode --- 9. Palindrome Number
题目链接:Palindrome Number Determine whether an integer is a palindrome. Do this without extra space. Some hints: Could negative integers be palindromes? (ie, -1) If you are thinking of converting the...
分类:其他好文   时间:2015-01-28 21:30:17    阅读次数:208
leetcode_9_Palindrome Number
很简单粗暴的思路就是将整数转换为StringBuilder,然后前面和后面的字符分别相比,直至前面和后面的下标相遇程序终止,任何一次比较不想等就不成立。但上面说without extra space,为啥我的程序能通过?好吧,程序不算真的通过,我用到了额外的存储空间。...
分类:其他好文   时间:2015-01-28 09:43:58    阅读次数:163
LeetCode125——Valid Palindrome
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example, "A man, a plan, a canal: Panama" is a palindrome. "race a car" is not a p...
分类:其他好文   时间:2015-01-27 18:23:55    阅读次数:182
poj 1159
F -PalindromeTime Limit:3000MSMemory Limit:65536KB64bit IO Format:%I64d & %I64uSubmitStatusPracticePOJ 1159DescriptionA palindrome is a symmetrical st...
分类:其他好文   时间:2015-01-27 13:00:56    阅读次数:123
LeetCode9——Palindrome Number
Determine whether an integer is a palindrome. Do this without extra space. 题目大意 判断一个int是否为回文数,不使用额外的储存空间。 难度系数:容易 实现 int getfactor(int x) { if (x < 10) return 1; int facto...
分类:其他好文   时间:2015-01-27 11:13:47    阅读次数:192
欧拉计划(python) problem 4
Largest palindrome product Problem 4 A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99. Find the largest p...
分类:编程语言   时间:2015-01-27 09:34:40    阅读次数:223
Problem 2902 - palindrome(最长公共字串)
Longest PalindromeTime Limit:3000MS    Memory Limit:0KB    64bit IO Format:%lld & %llu SubmitStatus Description Problem D: Longest Palindrome Time limit: 10 seconds ...
分类:其他好文   时间:2015-01-27 09:32:55    阅读次数:210
显示数据库中所有表的记录数
SELECT o.name, ddps.row_count FROM sys.indexes AS i INNER JOIN sys.objects AS o ON i.OBJECT_ID = o.OBJECT_ID INNER JOIN sys.dm_db_partition_stats AS d...
分类:数据库   时间:2015-01-27 09:18:05    阅读次数:181
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