1346 简单dp #include <iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<stdlib.h> #include<vector> using namespace std; #define N 200010 ]; int main() { int i,a,b; scanf("%d%d",&a,&am…

1346. Intervals of Monotonicity Time limit: 1.0 secondMemory limit: 64 MB It’s well known that a domain of any continuous function may be divided into intervals where the function would increase monotonically or decrease monotonically. A number of in…

[LeetCode]435. Non-overlapping Intervals 解题报告(Python) 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/non-overlapping-intervals/description/ 题目描述: Given a collection of intervals, find the minimum number of…

Problem Statement      The pony Rainbow Dash wants to choose her pet. There are N animals who want to be her pet. Rainbow Dash numbered them 0 through N-1. To help her make the decision, Rainbow Dash decided to organize a relay race for the animals.…

给你一些区间,每个区间都有些价值.取一个区间就能获得对应的价值,并且一个点不能覆盖超过k次,问你最大的价值是多少. 我们可以把这些区间放到一维的轴上去,然后我们可以把它看成一个需要从左到右的过程,然后这个过程中保证每个点不超过k次,并且获得的价值最大. 因为一个点不超过k次,只需要控制流入的最大流量是k,就可以保证每个点的流量都不会超过k. 建图过程: 1.超源到整个区间最小的点, 流量k, 费用0. 2.整个区间内每个点(除了最后一个点)到自己的下一个点,流量inf,费用0. 3.每个区间的左…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址: https://leetcode.com/problems/partition-array-into-disjoint-intervals/description/ 题目描述: Given an array A, partition it into two (contiguous) subarrays left and right so that: Every elemen…

挺好的dp 因为有一点限制 必须任意去除一个数 总和就会小于另一个总和 换句话来说就是去除最小的满足 那么就都满足 所以是限制最小值的背包 刚开始从小到大定住最小值来背 TLE了一组数据 后来发现如果从大到小的话 就不用多加一重for了 前面算的已经记录下来 直接用就OK了 #include <iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<stdlib…

题目链接 错误的贪了一下,然后D了两下就过了.注意是不上升和不下降..不是上升和下降.. #include <cstring> #include <cstdio> #include <string> #include <iostream> #include <algorithm> #include <cmath> #include <map> using namespace std; #define INF 1000000…

刷个简单的DP缓缓心情 1A #include <iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<stdlib.h> #include<vector> using namespace std; #define N 10010 vector<int>q[N]; #define LL __int64 #define INF 1e…

题目来源 https://leetcode.com/problems/merge-intervals/ Given a collection of intervals, merge all overlapping intervals. For example,Given [1,3],[2,6],[8,10],[15,18],return [1,6],[8,10],[15,18]. 题意分析 Input:a list of intervals Output:a list of intervals…