http://codeforces.com/problemset/problem/580/B 题意:Kefa有n个朋友,要和这n个朋友中的一些出去,这些朋友有一些钱,并且和Kefa有一定的友谊值,要求这些朋友间的贫富差距(拥有的钱的数量)小于d,要求Kefa邀请出来的朋友的友谊值和最大,并输出这个最大值。 #include<stdio.h>#include<string.h>#include<iostream...
具体到这题就是,都不用二分:按照工资排序后设定前后指针L,RL,R,然后将RR向前移动到最大的符合条件的区间,记录并更新长度,然后将LL更新,再继续这样操作即可。复杂度为O(n)O(n)。 代码 #include<bits/stdc++.h>#defineMP make_pair#definePB emplace_back#definefi first#definese second#defineZERO(x) mem...
Kefa wants to celebrate his first big salary by going to restaurant. However, he needs company. Kefa hasnfriends, each friend will agree to go to the restaurant if Kefa asks. Each friend is characterized by the amount of money he has and the friendship factor in respect to Kefa. The parr...
Kefa wants to celebrate his first big salary by going to restaurant. However, he needs company. Kefa hasnfriends, each friend will agree to go to the restaurant if Kefa asks. Each friend is characterized by the amount of money he has and the friendship factor in respect to Kefa. The parr...
Kefa wants to celebrate his first big salary by going to restaurant. However, he needs company. Kefa hasnfriends, each friend will agree to go to the restaurant if Kefa asks. Each friend is characterized by the amount of money he has and the friendship factor in respect to Kefa. The parr...
Codeforces Round #321 (Div. 2) Kefa and Company 二分 原题链接:http://codeforces.com/contest/580/problem/B 题意: 给你一个集合,集合中的每个元素有两个属性,mi,simi,si,让你求个子集合,使得集合中的最大m的差不超过d的情况下,s的和的最大值。
[CF580B]Kefa and Company(滑动窗口) 题目链接:http://codeforces.com/problemset/problem/580/B 某人有n个朋友,这n个朋友有钱数m和关系s两个属性。问如何选择朋友,使得这些朋友之间s最大差距小于d并且钱数是最多。 可以用滑动窗口,将m从小到大,s从大到小排列,这时在一个队列里维护队首和队尾,假如队首...
CF580B Kefa and Company 题解 双指针/二分 题目链接:http://codeforces.com/problemset/problem/580/B题目描述聪聪最近领到了工资所以他决定去五星级大饭店大吃一顿,但是一个人吃不爽,他需要朋友的陪伴。 聪聪有 nn 个朋友,如果聪聪邀请这 nn 个朋友中的任何一个人去吃饭,他们都会有时间陪伴聪聪去吃饭。
Kefa and Company CodeForces - 580B Kefa wants to celebrate his first big salary by going to restaurant. However, he needs company. Kefa hasnfriends, each friend will agree to go to the restaurant if Kefa asks. Each friend is characterized by the amount of money he has and the friendship ...
B. Kefa and Company ( Codeforces Round #321 (Div. 2)) standard output Kefa wants to celebrate his first big salary by going to restaurant. However, he needs company. Kefa hasnfriends, each friend will agree to go to the restaurant if Kefa asks. Each friend is characterized by the ...