我又开始水了,感觉又是一道虚假的蓝题 题意 非常好理解,自己看吧 题解 可以比较轻易的发现,如果对于一段满足和大于等于 \(m\) 的区间和其满足和大于等于 \(m\) 的子区间来说,选择子区间肯定是不会更劣的,所以对于一个右边界 \(r\) ,我们只需要找出满足条件的最大的左边界 \(l\) ,就可以更新答案了. 不难发现,这个左右边界都是单调递增的,所以可以考虑尺取法,同时在维护一个区间最大值. 维护区间最大值的东西有很多:线段树,\(st\) 表,单调队列,平衡树(\(set\))--随便…

\(10^18\)是要long long的. \(nlogn\)单调队列上维护\(logn\)线段树. #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> #include <cmath> #define R(a,b,c) for(register int a = (b); a <= (c); ++ a) #define nR(a,b,c…

5142: [Usaco2017 Dec]Haybale Feast Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 182  Solved: 131[Submit][Status][Discuss] Description Farmer John is preparing a delicious meal for his cows! In his barn, he has NN haybales (1≤N≤100,0 00). The iith…

Description Farmer John is preparing a delicious meal for his cows! In his barn, he has NN haybales (1≤N≤100,0 00). The iith haybale has a certain flavor Fi (1≤Fi≤10^9) and a certain spiciness Si(1≤Si≤10^9). The meal will consist of a single course,…

[题目链接] https://www.lydsy.com/JudgeOnline/problem.php?id=5142 [算法] 首先用RMQ预处理S数组的最大值 然后我们枚举右端点 , 通过二分求出合法的 , 最靠右的左端点 , 用这段区间的最大值更新答案 , 即可 时间复杂度 : O(NlogN) [代码] #include<bits/stdc++.h> using namespace std; typedef long long LL; ; ; const LL INF = 1e18;…

Problem 2. Fruit Feast 很简单的智商题(因为碰巧脑出来了所以简单一,一 原题: Bessie has broken into Farmer John's house again! She has discovered a pile of lemons and a pile of oranges in the kitchen (effectively an unlimited number of each), and she is determined to eat as m…

Fruit Feast 题目描述 Bessie has broken into Farmer John's house again! She has discovered a pile of lemons and a pile of oranges in the kitchen (effectively an unlimited number of each), and she is determined to eat as much as possible. Bessie has a maxi…

2620: [Usaco2012 Mar]Haybale Restacking Time Limit: 5 Sec  Memory Limit: 128 MBSubmit: 201  Solved: 111[Submit][Status][Discuss] Description Farmer John has just ordered a large number of bales of hay. He would like to organize these into N piles (1…

[USACO08JAN]haybale猜测Haybale Guessing 题目描述 给一段长度为\(n\),每个位置上的数都不同的序列\(a[1\dots n]\)和\(q\)和问答,每个问答是\((x, y, r)\)代表\(\min_\limits{i=a}^ba_i= r\), 要你给出最早的有矛盾的那个问答的编号. 输入输出格式 输入格式: Line 1: Two space-separated integers: \(N\) and \(Q\) Lines 2..\(Q+1\): E…

Haybale Guessing Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 2384   Accepted: 645 Description The cows, who always have an inferiority complex about their intelligence, have a new guessing game to sharpen their brains. A designated '…