摘要：
There is a sequence of brackets, which supports two kinds of operations.we can choose a interval [l,r], and set all the elements range in this inter... 阅读全文
摘要：
Description In reward of being yearly outstanding magic student, Harry gets a magical computer. When the computer begins to deal with a process, it w... 阅读全文
摘要：
Description： For a sequenceS1,S2,⋯,SN, and a pair of integers(i,j), if1≤i≤j≤NandSi#include#define max(a,b) (a>b?a:b)#define min(a,b) (a=R) { ... 阅读全文
摘要：
Description ACM has bought a new crane (crane -- jeřáb) . The crane consists of n segments of various lengths, connected by flexible joints. The end ... 阅读全文
摘要：
Description There is a number of disjoint vertical line segments in the plane. We say that two segments are horizontally visible if they can be conne... 阅读全文
摘要：
Description LogLoader, Inc. is a company specialized in providing products for analyzing logs. While Ikki is working on graduation design, he is also... 阅读全文
摘要：
Description The citizens of Bytetown, AB, could not stand that the candidates in the mayoral election campaign have been placing their electoral post... 阅读全文
摘要：
Description You haveNintegers,A1,A2, ... ,AN. You need to deal with two kinds of operations. One type of operation is to add some given number to eac... 阅读全文
摘要：
Description： In the game of DotA, Pudge’s meat hook is actually the most horrible thing for most of the heroes. The hook is made up of several cons... 阅读全文
摘要：
线段树（segment tree），一种二叉搜索树。比较常用。 就像这样。 推荐直接看http://wenku.baidu.com/view/94a8c01959eef8c75fbfb3d4.html （杭电的大神写的，十分推荐，特别棒。）例题：HDU 1166HDU 1754HDU 139... 阅读全文