10423 - 工序安排

一家工厂的流水线正在生产一种产品,这需要两种操作:操作A和操作B。每个操作只有一些机器能够完成。

上图显示了按照下述方式工作的流水线的组织形式。A型机器从输入库接受工件,对其施加操作A,得到的中间产品存放在缓冲库。B型机器从缓冲库接受中间产 品,对其施加操作B,得到的最终产品存放在输出库。所有的机器平行并且独立地工作,每个库的容量没有限制。每台机器的工作效率可能不同,一台机器完成一次 操作需要一定的时间。 给出每台机器完成一次操作的时间,计算完成A操作的时间总和的最小值,和完成B操作的时间总和的最小值。

输入

第一行 三个用空格分开的整数: N,工件数量 (1<=N<=1000)。 M1,A型机器的数量 (1<=M1<=30)。 M2,B型机器的数量 (1<=M2<=30)。

第二行…等 M1个整数(表示A型机器完成一次操作的时间,1..20),接着是M2个整数(B型机器完成一次操作的时间,1..20)

输出

只有一行。输出两个整数:完成所有A操作的时间总和的最小值,和完成所有B操作的时间总和的最小值(A操作必须在B操作之前完成)。

样例

输入

5 2 3
1 1 3 1 4

输出

3 5

提示

Job Processing IOI'96 A factory is running a production line that requires two operations to be performed on each job: first operation "A" then operation "B". Only a certain number of machines are capable of performing each operation.

Figure 1 shows the organization of the production line that works as follows. A type "A" machine takes a job from the input container, performs operation "A" and puts the job into the intermediate container. A type "B" machine takes a job from the intermediate container, performs operation "B" and puts the job into the output container. All machines can work in parallel and independently of each other, and the size of each container is unlimited. The machines have different performance characteristics, a given machine requires a given processing time for its operation. Give the earliest time operation "A" can be completed for all N jobs provided that the jobs are available at time 0. Compute the minimal amount of time that is necessary to perform both operations (successively, of course) on all N jobs.

PROGRAM NAME: job INPUT FORMAT Line 1: Three space-separated integers: N, the number of jobs (1<=N<=1000). M1, the number of type "A" machines (1<=M1<=30) M2, the number of type "B" machines (1<=M2<=30)

Line 2..etc: M1 integers that are the job processing times of each type "A" machine (1..20) followed by M2 integers, the job processing times of each type "B" machine (1..20).

SAMPLE INPUT (file job.in) 5 2 3 1 1 3 1 4

OUTPUT FORMAT A single line containing two integers: the minimum time to perform all "A" tasks and the minimum time to perform all "B" tasks (which require "A" tasks, of course). SAMPLE OUTPUT (file job.out) 3 5

时间限制 1 秒
内存限制 128 MB
讨论 统计
上一题 下一题