题目链接 https://vjudge.net/problem/CodeForces-1061D 题面 Description There are nn TV shows you want to watch. Suppose the whole time is split into equal parts called "minutes". The i-th of the shows is going from li-th to ri-th minute, both ends incl…

Description 给定 \(n\) 个电视节目和两个参数 \(x,y\).你想要看全部的电视节目,但是同一个电视机同一个时刻只能播放一个电视节目,所以你只能多租赁电视机.在时间 \([l,r]\) 租赁一台电视机的花费是 \(x~+~y~(r - l)\).一台电视机不可以在节目没有播放完时中断播放.求最小花费.答案对 \(1e9+7\) 取模 Input 第一行是三个整数 \(n, x, y\) 下面 \(n\) 行每行两个整数 \(l,r\),代表节目时间 Output 一行一个整数代…

题意:给出n个电视节目的起始和结束时间  并且租一台电视需要x +y*(b-a)  [a,b]为时段 问完整看完电视节目的最小花费是多少 思路:贪心的思想 情况1 如果新租一台电视的花费<=在空闲电视上面看节目 那么肯定新租电视 情况2 否则就直接在空闲电视上看 就好 模拟难(QAQ): 这里使用多重集合模拟   先把所有时间的pair(结束时间,开始时间) 放入多重集里面 然后开一个数组以l 从小到大排序 从数组小到大 枚举  在多重集里面找离终点最近的那个点 如果符合情况1 那么就删去 找到…

传送门 https://www.cnblogs.com/violet-acmer/p/10005351.html 题意: 有n个节目,每个节目都有个开始时间和结束时间. 定义x,y分别为租电视需要的花费和看电视需要的花费(应该是花的电费,哈哈). 加入某电视节目的播放区间是[a,b],那么看完这个节目需要的总花费为x+(b-a)*y. 如果有其他节目的播放区间是[b,c],那么便不能和[a,b]的节目用同一个电视看. 求看完所有电视节目所需要的最少花费. 题解: 这应该是道贪心题. 对于每个节目…

题意:n个节目,每个节目的播放时间为[li,ri],你需要选择一些电视机全部播放这些节目,一台电视机不能同时播放多个节目,选择一个新的电视机代价为x , 如果某台电视机的使用时间为[Li,Ri]需要付出(Ri-Li)*y的代价,问最小的代价: 题解:        答案是选由于使用电视播放节目的代价是固定的,所以只需要让浪费的使用时间和选择一个新的电视的代价之和最小即可,左端点排序,对于[li,ri],每次选择前面使得rj<li的rj最大的(lj,rj),将x和(li-rj)*y比较讨论: cf…

提交链接 http://codeforces.com/gym/100781/submit Description: Ada, Bertrand and Charles often argue over which TV shows to watch, and to avoid some of their fights they have finally decided to buy a video tape recorder. This fabulous, new device can reco…

Technology is rapidly becoming the key point in human lives. Here we have discussed top TV shows which have hacking as the central theme. 10 Best TV Series Based On Hacking And Technology Well, if you are a tech fanatic then you will love watching TV…

Alex decided to try his luck in TV shows. He once went to the quiz named "What's That Word?!". After perfectly answering the questions "How is a pseudonym commonly referred to in the Internet?" ("Um... a nick?"), "After…

We spend a full five hours and 16 minutes a day in front of a screen, and that's without even turning on a television. So says a statistic from eMarketer, a research firm that focuses on digital media and marketing. It says that for the first time we…

U.S. fans of the hit talent show 'The Voice' may take for granted that its judges sit with their backs to performers, choosing winners purely on the basis of their voices. But in China, where television and much of society is frequently biased toward…