[codeforces722C]Destroying Array 试题描述 You are given an array consisting of n non-negative integers a1, a2, ..., an. You are going to destroy integers in the array one by one. Thus, you are given the permutation of integers from 1 to n defining the or…

题目链接:https://cn.vjudge.net/problem/CodeForces-722C 题意 给个数组,每次删除一个元素,删除的元素作为一个隔断,问每次删除后该元素左右两边最大连续和 思路 这个题的思路马上就想到的时候,别人直接抢答,还是比较厉害的人了 离线操作,删除变成添加,添加时注意左右两边元素的最大值即可 提交过程 WA 忘了为什么WA了 AC 代码 #include <cstdio> #include <algorithm> using namespace s…

题意: 先给你一个序列,然后给你n个1-n的一个数,让你求前i个元素销毁的时候,区间字段和区间最大: 思路: 离线处理,维护新区间首尾位置的起点和终点,倒着处理: #include <bits/stdc++.h> using namespace std; typedef long long LL; typedef unsigned long long ULL; typedef pair<int,int>PII; const double eps=1e-5; const double…

C. Destroying Array time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given an array consisting of n non-negative integers a1, a2, ..., an. You are going to destroy integers in the ar…

链接:Destroying Array C. Destroying Array time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given an array consisting of n non-negative integers a1, a2, ..., an. You are going to destro…

C. Destroying Array 题目连接: http://codeforces.com/contest/722/problem/C Description You are given an array consisting of n non-negative integers a1, a2, ..., an. You are going to destroy integers in the array one by one. Thus, you are given the permuta…

C. Destroying Array time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given an array consisting of n non-negative integers a1, a2, ..., an. You are going to destroy integers in the ar…

原题中需要求解的是按照它给定的操作次序,即每次删掉一个数字求删掉后每个区间段的和的最大值是多少. 正面求解需要维护新形成的区间段,以及每段和,需要一些数据结构比如 map 和 set. map<int, LL>interval2Sum来维护区间段(u->v),mulitset<LL>sum 来维护最大值.那么每次删除操作后,都需要去interval2Sum中找到对应区间,然后erase掉, 重新生成left -> delId -> right两个区间段,最后在ma…

C. Destroying Array time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given an array consisting of n non-negative integers a1, a2, ..., an. You are going to destroy integers in the ar…

Destroying Array time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given an array consisting of n non-negative integers a1, a2, ..., an. You are going to destroy integers in the array…