最佳调度问题的回溯算法
设有n个任务由k个可并行工作的机器来完成，完成任务i需要时间为 。试设计一个算法找出完成这n个任务的最佳调度，使完成全部任务的时间最早。（要求给出调度方案）(Backtracking algorithm for optimal scheduling problem
There are n tasks to be done by K machines that can work in parallel, and the task I needs time to complete. Try to design an algorithm to find the best scheduling to complete the n tasks, so that the completion of the entire task is the earliest. (required to give a scheduling scheme))