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UVA11997K Smallest Sums(优先队列+二路归并)
题目:UVA11997K Smallest Sums(优先队列+二路归并) 题目大意:求K个最小和。给出K行,每行有K个数,在每行中取一个元素相加,求这些和中最小的k的值。 解题思路:每一行排列一下,那么对于两张表a1                                                                             b1 ...
分类:其他好文   时间:2014-09-09 12:45:58    阅读次数:209
[Java Basics3] XML, Unit testing
What's the difference between DOM and SAX?DOM creates tree-like representation of the XML document in memory, SAX is event-based.What's the differen.....
分类:编程语言   时间:2014-09-09 11:21:18    阅读次数:237
UVA 11997 【K Smallest Sums】
【题意分析】本题目是要求总和最小的k个值,当然我们没有必要把所有的值全部求一次,我们首先应该对每组元素进行排序。然后根据两两合并的观点节约空间(先把前两组数据合并为一组数据,最后把下面的每一组数据和之前合并所得的那组数据进行合并)。那么最后剩下的那组数据中的前k个数字就是最小的数字。【借鉴之处】本题...
分类:其他好文   时间:2014-09-06 17:15:53    阅读次数:257
stuff about set multiset map multimap
A lot of interviewers like to ask the candidates the difference between set and multiset(map and multimap).What does multi actually mean?Multi-conta.....
分类:其他好文   时间:2014-09-06 16:04:23    阅读次数:285
the difference between primary key and unique key
primary key:主键约束unique key:唯一键约束相同点:唯一,既值都不能重复不同点: 1.一个表中只能有一个主键约束,但是唯一键约束可以有多个; 2.主键约束可以由一个或多个键组成,而唯一键约束只作用在一个键上; 3.主键作用的字段值不能为空,而唯一键作用的字段值可以为空。 主...
分类:其他好文   时间:2014-09-04 18:47:59    阅读次数:216
Cocos2d-x3.1粒子使用
1、头文件 #include "cocos2d.h" USING_NS_CC; class WaterWaveDemo : public Layer { public: static cocos2d::Scene* createScene(); // Here's a difference. Method 'init' in cocos2d-x returns boo...
分类:其他好文   时间:2014-09-04 01:44:17    阅读次数:222
zoj 3747
Attack on Titans Time Limit: 2 Seconds      Memory Limit: 65536 KB Over centuries ago, mankind faced a new enemy, the Titans. The difference of power between mankind and their newfound enemy was...
分类:其他好文   时间:2014-09-03 09:44:47    阅读次数:297
The Bags Are Sold Practically Everywhere
Herve Leger Strapless, you can see the difference in the price of parts for fixing the toilet, and labor costs. This color is easy to match and combin...
分类:其他好文   时间:2014-09-02 13:51:15    阅读次数:265
乌拉姆数列 Euler167
昨天 yep 问了一个问题: For two positive integers a and b, the Ulam sequence U(a,b) is defined by U(a,b)1 = a, U(a,b)2 = b and for k > 2, U(a,b)k is the smallest integer greater than U(a,b)(k-1) which can...
分类:其他好文   时间:2014-08-31 20:07:21    阅读次数:359
Delphi Variant oleVariant
The OleVariant type exists on both the Windows and Linux platforms. The main difference between Variant and OleVariant is that Variant can contain dat...
分类:其他好文   时间:2014-08-29 17:53:58    阅读次数:201
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