说明：  对以下问题：假定不同的住宅有不同的服务量，值为c [2 1 2 4 4 2 5 1 6 1 1 1 4 2 6 2 1 2 4 5]。重新计算服务中心的地址和服务方案。采用lingo软件建模，编程求解
(On the following question: assume different homes have different amounts of service, value c [2 1 2 4 4 2 5 1 6 1 1 1 4 2 6 2 1 2 4 5]. Recalculation and service solutions address service center. Using lingo software modeling, programming solver)