You are a given a list of integers a 1 ,a 2 ,…,a n a1,a2,…,an and s s of its segments [l j ;r j ] [lj;rj] (where 1≤l j ≤r j ≤n 1≤lj≤rj≤n ). You need to select exactly m m segments in such a way that the k k -th order statistic of the multiset of a i…
题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=1171 Big Event in HDU Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) 问题描述 Nowadays, we all know that Computer College is the biggest department in HDU. But, maybe you…
Partial Tree Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5534 Description In mathematics, and more specifically in graph theory, a tree is an undirected graph in which any two nodes are connected by exactly…
B. Modulo Sum Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/577/problem/B Description You are given a sequence of numbers a1, a2, ..., an, and a number m. Check if it is possible to choose a non-empty subsequence aij such…
http://ac.nbutoj.com/Problem/view.xhtml?id=1479 [1479] How many 时间限制: 1000 ms 内存限制: 65535 K 问题描述 There are N numbers, no repeat. All numbers is between 1 and 120, and N is no more than 60. then given a number K(1 <= K <= 100). Your task is to find o…
Best Cow Fences Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 10174 Accepted: 3294 Description Farmer John's farm consists of a long row of N (1 <= N <= 100,000)fields. Each field contains a certain number of cows, 1 <= ncows <= 2…
题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=3591 The trouble of Xiaoqian Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2798 Accepted Submission(s): 972 Problem Description In the countr…