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2436:Disease Management

题目描述
Alas! A set of D (1 <= D <= 15) diseases (numbered 1..D) is running through the farm. Farmer John would like to milk as many of his N (1 <= N <= 1,000) cows as possible. If the milked cows carry more than K (1 <= K <= D) different diseases among them, then the milk will be too contaminated and will have to be discarded in its entirety. Please help determine the largest number of cows FJ can milk without having to discard the milk.
输入解释
* Line 1: Three space-separated integers: N, D, and K

* Lines 2..N+1: Line i+1 describes the diseases of cow i with a list of 1 or more space-separated integers. The first integer, d_i, is the count of cow i's diseases; the next d_i integers enumerate the actual diseases. Of course, the list is empty if d_i is 0.
输出解释
* Line 1: M, the maximum number of cows which can be milked.
输入样例
6 3 2
0
1 1
1 2
1 3
2 2 1
2 2 1
输出样例
5
提示
OUTPUT DETAILS:

If FJ milks cows 1, 2, 3, 5, and 6, then the milk will have only two diseases (#1 and #2), which is no greater than K (2).

该题目是Virtual Judge题目,来自 北京大学POJ

源链接: POJ-2436

最后修改于 2020-10-29T06:32:26+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
1000 65536