开门人和关门人 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 17861    Accepted Submission(s): 9056 Problem Description 每天第一个到机房的人要把门打开，最

开门人和关门人 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11145    Accepted Submission(s): 5673 Problem Description 每天第一个到机房的人要把门打开，最后一