考虑客户请求在圈中实现的问题.每个请求联系着一个扣区间,由圈上至多t(t≥1)个区间构成.要实现一个请求,需选择它所对应的扣区间中的一个区间并为其安排蠡种颜色中的一种.任意两个选定的区间如果在圈上有公共边,则不能得到同一种颜色.对目标寻求实现最大数目的请求问题,给出了一个3.042-近似算法.
The problem satisfying the clients requests in a given cycle is considered. Each request is associated with a t-interval, which consists of up to t(t≥1) intervals on the cycle. To satisfy a request, one of the intervals defining it must be selected and one of k colors must be assigned . No intervals selected for the requests can be assigned with the same color if they shared an edge of the cycle. A 3.042-approximation algorithm is presented for the objective of maximizing the total number of satisfied requests.