Description Farmer John has built a new long barn, with N (2 <= N <= 100,000) stalls. The stalls are located along a straight line at positions x1,...,xN (0 <= xi <= 1,000,000,000). His C (2 <= C <= N) cows don't like this barn layout an…

//二分判定 覆盖问题 BZOJ 1052 // 首先确定一个最小矩阵包围所有点,则最优正方形的一个角一定与矩形一个角重合. // 然后枚举每个角,再解决子问题 #include <bits/stdc++.h> using namespace std; #define LL long long typedef pair<int,int> pii; const int inf = 1e9; ; ; #define clc(a,b) memset(a,b,sizeof(a)) ; vo…

[题目大意] 有N间牛舍和M头牛,告诉你每个牛舍的位置,求出两头牛之间最小距离的最大值. [思路] 二分判断两头牛之间的最小距离d,通过贪心法进行验证. #include<iostream> #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> using namespace std; +; int n,m; int pos[MAXN]; int whethe…

2440: [中山市选2011]完全平方数 Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 2371  Solved: 1143[Submit][Status][Discuss] Description 小 X 自幼就很喜欢数.但奇怪的是,他十分讨厌完全平方数.他觉得这些数看起来很令人难受.由此,他也讨厌所有是完全平方数的正整数倍的数.然而这丝毫不影响他对其他数的热爱. 这天是小X的生日,小 W 想送一个数给他作为生日礼物.当然他不能送一个小X讨厌…

Description Farmer John has built a new long barn, with N (2 <= N <= 100,000) stalls. The stalls are located along a straight line at positions x1,-,xN (0 <= xi <= 1,000,000,000). His C (2 <= C <= N) cows don't like this barn layout and…

POJ 2456 Agressive cows 农夫 John 建造了一座很长的畜栏,它包括N (2≤N≤100,000)个隔间,这 些小隔间的位置为x0,...,xN-1 (0≤xi≤1,000,000,000,均为整数,各不相同). John的C (2≤C≤N)头牛每头分到一个隔间.牛都希望互相离得远点省得 互相打扰.怎样才能使任意两头牛之间的最小距离尽可能的大,这个最 大的最小距离是多少呢 思想:二分,首先把输入的数据进行从小到大排序,再由最短距离为1,最长距离为(a[n-1] - a[0…

Aggressive cows Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 22674 Accepted: 10636 Description Farmer John has built a new long barn, with N (2 <= N <= 100,000) stalls. The stalls are located along a straight line at positions x1,...,x…

Aggressive cows Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 18099   Accepted: 8619 Description Farmer John has built a new long barn, with N (2 <= N <= 100,000) stalls. The stalls are located along a straight line at positions x1,..…

Description Farmer John has built a new long barn, with N (2 <= N <= 100,000) stalls. The stalls are located along a straight line at positions x1,...,xN (0 <= xi <= 1,000,000,000). His C (2 <= C <= N) cows don't like this barn layout an…

题目描述 Farmer John has decided to reward his cows for their hard work by taking them on a tour of the big city! The cows must decide how best to spend their free time. Fortunately, they have a detailed city map showing the L (2 ≤ L ≤ 1000) major landma…