CF1117A Best Subsegment 乍一看好像很难,仔细想一下发现就是弱智题... 任意一段平均数显然不会超过最大的数,若只取最大数即可达到平均数为最大数. 于是只用取最长的一段连续的最大数即可. #include<bits/stdc++.h> using namespace std; #define ll long long #define mp make_pair #define pii pair<int,int> inline int read() { int x…

[CC-SEINC]Sereja and Subsegment Increasings 题目大意: 有长度为\(n(n\le10^5)\)的序列\(A\)和\(B\). 在一次操作中,可以选择一个区间增加\(1\). 求让\(A\)和\(B\)在模\(4\)意义下相等,至少要对\(A\)执行多少次操作. 思路: 对\(A,B\)对应作差,\(C_i=B_i-A_i\). 求\(C\)的查分\(D_i=C_i-C_{i+1}\). 如果不考虑模\(4\),答案即为\(\sum\max(D_i,0)…

Description Transmission Gate 给你一个长度为n的排列P,定义一段子区间是好的,当且仅当这个子区间内的值构成了连续的一段.例如对于排列\(\{1,3,2\}\),\([1,1],[2,2],[3,3],[2,3],[1,3]\)是好的区间. 共q次询问,每次询问L,R 求有多少\(L \leq l \leq r\leq R\),满足\([l,r]\)是好的区间.\(1≤n,q≤1.2×10^5\). Solution 可以发现,区间\([l,r]\)是好的,当且仅当$…

D. Dense Subsequence time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given a string s, consisting of lowercase English letters, and the integer m. One should choose some symbols fr…

题目链接 http://codeforces.com/contest/711/problem/C Description ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided to be naughty and color the trees in the park. The trees are numbered wit…

E. George and Cards   George is a cat, so he loves playing very much. Vitaly put n cards in a row in front of George. Each card has one integer written on it. All cards had distinct numbers written on them. Let's number the cards from the left to the…

C. Coloring Trees   ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided to be naughty and color the trees in the park. The trees are numbered with integers from 1 to n from left to right…

time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output DZY has a sequence a, consisting of n integers. We'll call a sequence ai, ai + 1, ..., aj (1 ≤ i ≤ j ≤ n) a subsegment of the sequence a. The…

Copying Data Time Limit:2000MS Memory Limit:262144KB 64bit IO Format:%I64d & %I64u Description We often have to copy large volumes of information. Such operation can take up many computer resources. Therefore, in this problem you are advised to come…

传送门:http://codeforces.com/problemset/problem/711/C 题目: C. Coloring Trees time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder and Chris the Baboon has arrived at Udayland! They wal…

题目链接: http://codeforces.com/contest/724 A. Checking the Calendar time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given names of two days of the week. Please, determine whether it is…

题目链接: C. Coloring Trees time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided…

题 You are given array ai of length n. You may consecutively apply two operations to this array: remove some subsegment (continuous subsequence) of length m < n and pay for it m·a coins; change some elements of the array by at most 1, and pay b coins…

传送门 D. Restructuring Company time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Even the most successful company can go through a crisis period when you have to make a hard decision — to rest…

You are given array ai of length n. You may consecutively apply two operations to this array: remove some subsegment (continuous subsequence) of length m < n and pay for it m·a coins; change some elements of the array by at most 1, and pay b coins fo…

url route 路由系统的责任是找到匹配的路由,创建路由数据,并将请求分配给一个处理程序. 选择动作是 MVC 的处理程序的实现细节.它使用路由数据和从传入请求其他信息来选择要执行的操作 实例 源码:http://pan.baidu.com/s/1i3lfbaH 具体实现 //存放url 路径片段 public abstract class PathSegment { // Methods protected PathSegment() { } } // 主要存放 url template…

Coloring Trees Problem Description: ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided to be naughty and color the trees in the park. The trees are numbered with integers from 1 to n fr…

D. Array GCD 题目连接: http://codeforces.com/contest/624/problem/D Description You are given array ai of length n. You may consecutively apply two operations to this array: remove some subsegment (continuous subsequence) of length m < n and pay for it m·…

B. Amr and The Large Array Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/558/problem/B Description Amr has got a large array of size n. Amr doesn't like large arrays so he intends to make it smaller. Amr doesn't care abou…

题目链接: 题目 E. George and Cards time limit per test:2 seconds memory limit per test:256 megabytes 问题描述 George is a cat, so he loves playing very much. Vitaly put n cards in a row in front of George. Each card has one integer written on it. All cards had…

A. Kefa and First Steps Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/580/problem/A Description Kefa decided to make some money doing business on the Internet for exactly n days. He knows that on the i-th day (1 ≤ i ≤ n) h…

C. Ladder time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You've got an array, consisting of n integers a1, a2, ..., an. Also, you've got m queries, the i-th query is described by two inte…

C. Coloring Trees time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided to be…

Amr has got a large array of size n. Amr doesn't like large arrays so he intends to make it smaller. Amr doesn't care about anything in the array except the beauty of it. The beauty of the array is defined to be the maximum number of times that some…

A. DZY Loves Sequences time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output DZY has a sequence a, consisting of n integers. We'll call a sequence ai, ai + 1, ..., aj (1 ≤ i ≤ j ≤ n) a subsegment…

Hard Process Time Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 660C Description You are given an array a with n elements. Each element of a is either 0 or 1. Let's denote the length of the…

题目地址:http://codeforces.com/contest/447/problem/C C. DZY Loves Sequences time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output DZY has a sequence a, consisting of n integers. We'll call a sequence…

C. DZY Loves Sequences time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output DZY has a sequence a, consisting of n integers. We'll call a sequence ai, ai + 1, ..., aj (1 ≤ i ≤ j ≤ n) a subsegment…

Asp.net mvc5 解析route源码实现自己的route系统   url route 路由系统的责任是找到匹配的路由,创建路由数据,并将请求分配给一个处理程序. 选择动作是 MVC 的处理程序的实现细节.它使用路由数据和从传入请求其他信息来选择要执行的操作 实例 源码:http://pan.baidu.com/s/1i3lfbaH 具体实现 //存放url 路径片段 public abstract class PathSegment { // Methods protected Path…

预处理出每一个数字能够向后延伸多少,然后尝试将两段拼起来. C. DZY Loves Sequences time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output DZY has a sequence a, consisting of n integers. We'll call a sequence ai, ai + 1, ..., a…