#P1604. [Usaco2008 Open]Cow Neighborhoods 奶牛的邻居
[Usaco2008 Open]Cow Neighborhoods 奶牛的邻居
Description
了解奶牛们的人都知道,奶牛喜欢成群结队.观察约翰的N(1≤N≤100000)只奶牛,你会发现她们已经结成了几个“群”.每只奶牛在吃草的时候有一个独一无二的位置坐标Xi,Yi(l≤Xi,Yi≤[1..10^9];Xi,Yi∈整数.当满足下列两个条件之一,两只奶牛i和j是属于同一个群的:
1.两只奶牛的曼哈顿距离不超过C(1≤C≤10^9),即lXi - xil+IYi - Yil≤C.
2.两只奶牛有共同的邻居.即,存在一只奶牛k,使i与k,j与k均同属一个群.
给出奶牛们的位置,请计算草原上有多少个牛群,以及最大的牛群里有多少奶牛
Input
第1行输入N和C,之后N行每行输入一只奶牛的坐标.
Output
仅一行,先输出牛群数,再输出最大牛群里的牛数,用空格隔开.
Samples
4 2
1 1
3 3
2 2
10 10
* Line 1: A single line with a two space-separated integers: the
number of cow neighborhoods and the size of the largest cow
neighborhood.
2 3
OUTPUT DETAILS:
There are 2 neighborhoods, one formed by the first three cows and
the other being the last cow. The largest neighborhood therefore
has size 3.