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poj 3067 Japan(线段树)
题目链接:poj 3067 Japan 题目大意:给定N和M,表示东部和西部城市的数量,然后K条铁路,每条铁路连接东西城市,问说会有多少次交点。 解题思路:线段树维护即可,每条边按照x小的,y小的排序,然后每次查询y+1到M的即可。 #include #include #include using namespace std; const int maxn = 1005;...
分类:其他好文   时间:2014-10-24 00:21:42    阅读次数:235
HDU 5074 Hatsune Miku(DP)
Problem Description Hatsune Miku is a popular virtual singer. It is very popular in both Japan and China. Basically it is a computer software that allows you to compose a song on your own using the...
分类:其他好文   时间:2014-10-23 17:38:28    阅读次数:159
[ACM] HDU 5074 Hatsune Miku (简单DP)
Hatsune Miku Problem Description Hatsune Miku is a popular virtual singer. It is very popular in both Japan and China. Basically it is a computer software that allows you to compose a song on yo...
分类:其他好文   时间:2014-10-23 10:40:49    阅读次数:384
POJ 3067 Japan 树状数组求逆序对
题目大意:有两排城市,这两排城市之间有一些路相互连接着,求有多少条路相互交叉。 思路:把所有的路先按照x值从小到大排序,x值相同的按照y值从小到大排序,然后插入边的时候,先找有多少比自己y值小的,这些边的x值一定比自己大,也就是一个逆序对,然后统计起来。记得答案要用long long (__int64) CODE: #include #include #inclu...
分类:编程语言   时间:2014-10-16 11:30:12    阅读次数:218
poj 2892
Tunnel Warfare Time Limit: 1000MS   Memory Limit: 131072K Total Submissions: 6972   Accepted: 2864 Description During the War of Resistance Against Japan, tunnel warfare ...
分类:其他好文   时间:2014-08-29 11:10:47    阅读次数:162
POJ 3067 Japan (树状数组)
Description Japan plans to welcome the ACM ICPC World Finals and a lot of roads must be built for the venue. Japan is tall island with N cities on the East coast and M cities on the West coast (M <= ...
分类:其他好文   时间:2014-08-24 23:54:53    阅读次数:263
UVA - 12123 Magnetic Train Tracks
Description   The rail roads of Japan are being redesigned. So the governent is planning to install ultra-modern Magnetic trains instead of the current normal trains. As fuel price have gone hi...
分类:Web程序   时间:2014-08-22 12:57:18    阅读次数:401
POJ3525-Most Distant Point from the Sea(二分+半平面交)
Most Distant Point from the Sea Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 3955   Accepted: 1847   Special Judge Description The main land of Japan ca...
分类:其他好文   时间:2014-08-20 22:48:43    阅读次数:418
SQLPLUS的乱码问题
我的中文系统,把对应非unicode字符时的设置,改成了 日文, 结果控制台使用sqlplus时候,总是出现乱码。解决方法是,把NLS_LANG环境变量变成跟系统一样,就可以了。american_america.zhs16gbk =>JAPANESE_JAPAN.JA16SJIS(使用 JA16SJ...
分类:数据库   时间:2014-08-18 15:49:32    阅读次数:355
{POJ}{树状数组}
总结一下树状数组的题目:{POJ}{3928}{Ping Pong}非常好的题目,要求寻找一个数组中满足A[i]0。{POJ}{3067}{Japan}顺序给两组平行的点依次编号1~N和1~M,给定K个线段在两组点之间,求相交(cross)的线段对有多少个,同一个起点或终点不算相交。由于题目涉及到统...
分类:其他好文   时间:2014-08-15 22:20:19    阅读次数:252
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