一个任务有最迟完成时间和其收益，任务必须在最迟完成时间内完成才可得到收益。求一个安排的序列，使能够得到最大收益。-A task completion time and its latest earnings, the task must be completed no later than the time to complete before you can get benefits. Seeking an arrangement sequence, so that maximum benefit can be.