Description Bessie the cow is a huge fan of card games, which is quite surprising, given her lack of opposable thumbs. Unfortunately, none of the other cows in the herd are good opponents. They are so bad, in fact, that they always play in a complete…
巧妙的贪心 Description Bessie the cow is a huge fan of card games, which is quite surprising, given her lack of opposable thumbs. Unfortunately, none of the other cows in the herd are good opponents. They are so bad, in fact, that they always play in a co…
Description Bessie the cow is a huge fan of card games, which is quite surprising, given her lack of opposable thumbs. Unfortunately, none of the other cows in the herd are good opponents. They are so bad, in fact, that they always play in a complete…
题目描述 Bessie the cow is a hu e fan of card games, which is quite surprising, given her lack of opposable thumbs. Unfortunately, none of the other cows in the herd are good opponents. They are so bad, in fact, that they always play in a completely pred…
G. Raffles time limit per test:5 seconds memory limit per test:256 megabytes input:standard input output:standard output Johnny is at a carnival which has n raffles. Raffle i has a prize with value pi. Each participant can put tickets in whichever ra…
传送门 题意简述:给出一张DAGDAGDAG,要求删去不超过kkk条边问最后拓扑序的最大字典序是多少. 思路:贪心帮当前不超过删边上限且权值最大的点删边,用线段树维护一下每个点的入度来支持查询即可. 注意要在选点的时候更新后继的入度 代码: #include<bits/stdc++.h> #define ri register int using namespace std; inline int read(){ int ans=0; char ch=getchar(); while(!isd…
Although Farmer John has no problems walking around the fair to collect prizes or see the shows, his cows are not in such good shape; a full day of walking around the fair leaves them exhausted. To help them enjoy the fair, FJ has arranged for a shut…
ZZX and Permutations Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 24 Accepted Submission(s): 2 Problem Description ZZX likes permutations. ZZX knows that a permutation can be decomposed…
按结束时间排序,然后开个线段树,按照排序后的牛群贪心的选 贪心的依据是选哪头牛都是选,不如给后面的多省一点空间 #include<iostream> #include<cstdio> #include<algorithm> using namespace std; const int N=50005; int m,n,c,ans; struct xds { int l,r,mn,lz; }t[N<<1]; struct qwe { int s,t,m; }a…
