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Moo University - Financial Aid (poj 2010 优先队列 或者 二分)
题意:从C有奶牛中选N头,给出它们的分数scores和资助aid,要是这N头牛的总资助不超过F,同时它们中分数的中位数最大。求这个最大的中位数。 思路:按照分数排序,枚举每头牛作为中位数,计算牛i前面N/2头牛的最小资助和后面N/2牛的最小资助(用到优先队列)。最后从后往前找第一个满足l[i]+r[i]+cow[i].second<=F的即为答案。...
分类:其他好文   时间:2015-03-21 17:13:09    阅读次数:247
poj3267——线性dp
poj3267——线性dpThe Cow LexiconTime Limit:2000MSMemory Limit:65536KTotal Submissions:8458Accepted:3993DescriptionFew know that the cows have their own di...
分类:其他好文   时间:2015-03-19 23:41:31    阅读次数:238
D - Fliptile POJ3279 搜索(反转开关经典问题,二进制表示集合)
D - Fliptile Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Submit Status Practice POJ 3279 Description Farmer John knows that an intellectually satisfied cow is a happy ...
分类:其他好文   时间:2015-03-19 22:04:33    阅读次数:141
poj 3278 Catch That Cow 【bfs】
Catch That Cow Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 52335   Accepted: 16416 Description Farmer John has been informed of the location of a fugit...
分类:其他好文   时间:2015-03-18 23:25:55    阅读次数:180
poj 3617 Best Cow Line
http://poj.org/problem?id=3617 #include #include #include #include #include using namespace std; const int MAX_N=2000; char S[MAX_N+1]; int N; int mai...
分类:其他好文   时间:2015-03-17 14:10:16    阅读次数:125
Catch That Cow
DescriptionFarmer John has been informed of the location of a fugitive cow and wants to catch her immediately. He starts at a pointN(0 ≤N≤ 100,000) on...
分类:其他好文   时间:2015-03-15 18:25:42    阅读次数:126
(简单) POJ 3268 Silver Cow Party,Dijkstra。
Description One cow from each of N farms (1 ≤ N ≤ 1000) conveniently numbered 1..N is going to attend the big cow party to be held at farm #X (1 ≤ ...
分类:其他好文   时间:2015-03-15 00:32:06    阅读次数:159
POJ 3278 Catch That Cow bfs 难度:1
http://poj.org/problem?id=3278从n出发,向两边转移,为了不使数字无限制扩大,限制在2*k以内,注意不能限制在k以内,否则就缺少不断使用-1得到的一些结果#include #include #include #include using namespace std;con...
分类:其他好文   时间:2015-03-14 15:02:52    阅读次数:164
Codeforces 283B Cow Program
题意:给你a[2] - a[n], 一个初始x = 1,初始y = 0 ,执行下面步骤1) x +=a[x] ,y += a[x]2) x -= a[x] ,y += a[x]3)重复1-2步骤。只要中间x n 就跳出。输出y的值问你a[1] 从 [1,n-1]分别的值为多少。解题思路:dfs 求....
分类:其他好文   时间:2015-03-12 20:45:45    阅读次数:183
POJ2456 Aggressive cows 二分
DescriptionFarmer 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) cow...
分类:其他好文   时间:2015-03-12 19:20:32    阅读次数:243
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