Aggressive cows Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 15528   Accepted: 7440 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,..…

poj 2456 Aggressive cows && nyoj 疯牛 最大化最小值 二分 题目链接: nyoj : http://acm.nyist.net/JudgeOnline/problem.php?pid=586 poj : http://poj.org/problem?id=2456 思路: 二分答案,从前到后依次排放m头牛的位置,检查是否可行 代码: #include <iostream> #include <algorithm> #include &…

/* 二分法的应用:最大化最小值 POJ2456 Aggressive cows Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 18125 Accepted: 8636 Description Farmer John has built a new long barn, with N (2 <= N <= 100,000) stalls. The stalls are located along a straight li…

描述 http://poj.org/problem?id=2456 有n个小屋,线性排列在不同位置,m头牛,每头牛占据一个小屋,求最近的两头牛之间距离的最大值. Aggressive cows Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 10095   Accepted: 4997 Description Farmer John has built a new long barn, with N (2 <= N <=…

Aggressive cows Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 10728   Accepted: 5288 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,..…

POJ3285 River Hopscotch 此题是大白P142页(即POJ2456)的一个变形题,典型的最大化最小值问题. C(x)表示要求的最小距离为X时,此时需要删除的石子.二分枚举X,直到找到最大的X,由于c(x)=m时满足题意,所以最后输出的是ub-1或者lb(lb==ub-1 注意相邻距离小于x的要删除(此处不是小于等于),对于相邻的距离小于x的两个石子,当删除其中一个后,又会产生其他的相邻的石子,直接计数不好计数,不妨用两个标记last,cur,其中last表示上一个石子,cur…

题目 这道题做了几个小时了都没有做出来,首先是题意搞了半天都没有弄懂,难道真的是因为我不打游戏所以连题都读不懂了? 反正今天是弄不懂了,过几天再来看看... 题意:一个人从1点出发到T点去打boss,这个人有两个属性值,防御值和战斗值,这两个值成反比,为了打赢boss我们要使战斗值最大,于是乎防御值就要最低,但是也不能太低,于是乎这个界限在哪,这就是我们要求的.每条路上都有一个索敌值,防御值必须>=索敌值 才能通过.从1点到T点有很多条通路,我们要找的是:这每一条通路中索敌值最大的中索敌值最小的…

Polycarp has a lot of work to do. Recently he has learned a new time management rule: "if a task takes five minutes or less, do it immediately". Polycarp likes the new rule, however he is not sure that five minutes is the optimal value. He suppo…

http://acm.nyist.net/JudgeOnline/problem.php?pid=586 http://poj.org/problem?id=2456 解题思路:最大化最小值二分答案即可 ];  }         , temp = a[];      ; i < n; i++){                       cnt++;              temp = a[i];                            }          }      …

Aggressive cows Time Limit: 1000MS Memory Limit: 65536K Total Submissions: Accepted: Description Farmer John has built a <= N <= ,) stalls. The stalls are located along a straight line at positions x1,...,xN ( <= xi <= ,,,). His C ( <= C &l…