Mart Master II Time Limit: 6000ms Memory Limit: 65536KB This problem will be judged on HDU. Original ID: 501664-bit integer IO format: %I64d      Java class name: Main Trader Dogy lives in city S, which consists of n districts. There are n - 1 bidire…

题目地址:pid=5016">HDU 5016 先两遍DFS预处理出每一个点距近期的基站的距离与基站的编号. 然后找重心.求出每一个点距重心的距离.然后依据dis[x]+dis[y] < d[y].用二分找出当前子树中不会被占据的数量,总点数减去即是被占据的数量. 这样就能够求出每一个点最多占据的点的数量.然后找最大值就可以. 代码例如以下: #include <iostream> #include <string.h> #include <math.h…

点分治好题. ①手动开栈. ②dp预处理每个点被哪个市场控制,及其距离是多少,记作pair<int,int>数组p. ③设dis[u].first为u到重心s的距离,dis[u].second=u,到在统计的时候,若dis[u]<=(p[v].first-dis[v].first,p[v].second)(双关键字比较),则符合题意,当然这样在计算同一颗子树里的答案时,是压根不对的,但是既然这部分反正是要被减掉的,那就将错就错地计算即可了. ④最后在所有原非市场节点的ans中取一个最大的…

Mart Master II Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 675    Accepted Submission(s): 237 Problem Description Trader Dogy lives in city S, which consists of n districts. There are n - 1…

HDU 3081 Marriage Match II pid=3081" target="_blank" style="">题目链接 题意:n个女孩n个男孩,每一个女孩能够和一些男孩配对.然后有些女孩是朋友.满足这个朋友圈里面的人,假设有一个能和某个男孩配对,其它就都能够,然后每轮要求每一个女孩匹配到一个男孩.且每轮匹配到的都不同,问最多能匹配几轮 思路:二分轮数k,然后建图为,源点连向女孩,男孩连向汇点容量都为k,然后女孩和男孩之间连边为.有关系的…

HDU 3081 Marriage Match II (网络流,最大流,二分,并查集) Description Presumably, you all have known the question of stable marriage match. A girl will choose a boy; it is similar as the game of playing house we used to play when we are kids. What a happy time as…

HDU 3081 Marriage Match II (二分图,并查集) Description Presumably, you all have known the question of stable marriage match. A girl will choose a boy; it is similar as the game of playing house we used to play when we are kids. What a happy time as so many…

Bone Collector II Time Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4178    Accepted Submission(s): 2174 Problem Description The title of this problem is familiar,isn't it?yeah,if you had took pa…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=1212 Train Problem II Description As we all know the Train Problem I, the boss of the Ignatius Train Station want to know if all the trains come in strict-increasing order, how many orders that all the t…

Bone Collector II Time Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1334    Accepted Submission(s): 666 Problem Description The title of this problem is familiar,isn't it?yeah,if you had took par…