Parallel-machine scheduling problem with periodic maintenance, job rejection and weighted sum of completion times

Parallel-machine scheduling problem with periodic maintenance, job rejection and weighted sum of completion times. Read the file READ-ME.txt first.带定期维护（periodic maintenance）、工件拒收（job rejection）及完工时间加权和（weighted sum of completion times）的并行机调度（Parallel-machine scheduling）问题，请先阅读READ-ME.txt文件。