题目链接 题意分析 首先 如果当前序列中一头奶牛拿不到礼物的话 那么他后面的奶牛也拿不到礼物 所以我们可以二分 由于可以操作无限次 所以我们对于当前\([1,mid)\)的奶牛按照\(c\)值排序之后 贪心的先放\(c\)中最小的奶牛 如果依然存在一头奶牛被放在\(mid\)之前 那么就无法使\(mid\)得到礼物 CODE: #include<iostream> #include<cstdio> #include<cstring> #include<cmath&…

题目描述 Farmer John's nemesis, Farmer Nhoj, has NN cows (1 \leq N \leq 10^51≤N≤105 ), conveniently numbered 1 \dots N1…N . They have unexpectedly turned up at Farmer John's farm, so the unfailingly polite Farmer John is attempting to give them gifts. To…

NC24083 [USACO 2017 Dec P]Greedy Gift Takers 题目 题目描述 Farmer John's nemesis, Farmer Nhoj, has N cows (\(1≤N≤10^5\)), conveniently numbered 1-N. They have unexpectedly turned up at Farmer John's farm, so the unfailingly polite Farmer John is attempting…

Description Farmer John's nemesis, Farmer Nhoj, has NN cows (1≤N≤10^5), conveniently numbered 1…N. They have  unexpectedly turned up at Farmer John's farm, so the unfailingly polite Farmer John is attempting to  give them gifts.To this end, Farmer Jo…

[题目链接] https://www.lydsy.com/JudgeOnline/problem.php?id=5139 [算法] 二分答案 时间复杂度 : O(NlogN^2) [代码] #include<bits/stdc++.h> using namespace std; ; int n; int a[MAXN] , b[MAXN]; template <typename T> inline void chkmax(T &x,T y) { x = max(x,y);…

Greedy Gift Givers A group of NP (2 ≤ NP ≤ 10) uniquely named friends has decided to exchange gifts of money. Each of these friends might or might not give some money to any or all of the other friends. Likewise, each friend might or might not receiv…

 Greedy Gift Givers  The Problem This problem involves determining, for a group of gift-giving friends, how much more each person gives than they receive (and vice versa for those that view gift-giving with cynicism). In this problem each person sets…

Greedy Gift Givers 贪婪的送礼者 对于一群(NP个)要互送礼物的朋友,GY要确定每个人送出的钱比收到的多多少. 在这一个问题中,每个人都准备了一些钱来送礼物,而这些钱将会被平均分给那些将收到他的礼物的人. 然而,在任何一群朋友中,有些人将送出较多的礼物(可能是因为有较多的朋友),有些人有准备了较多的钱. 给出一群朋友,没有人的名字会长于 14 字符,给出每个人将花在送礼上的钱,和将收到他的礼物的人的列表, 请确定每个人收到的比送出的钱多的数目. PROGRAM NAME: gi…

Greedy Gift Givers A group of NP (2 ≤ NP ≤ 10) uniquely named friends hasdecided to exchange gifts of money. Each of these friends might ormight not give some money to any or all of the other friends.Likewise, each friend might or might not receive m…

Greedy Gift Givers A group of NP (2 ≤ NP ≤ 10) uniquely named friends has decided to exchange gifts of money. Each of these friends might or might not give some money to any or all of the other friends. Likewise, each friend might or might not receiv…