ACM HDU 1234 开门人和关门人(简单水题）开门人和关门人
开门人和关门人Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5372 Accepted Submission(s): 2773Problem Description每天第一个到机房的人要把门打开，最后一个离开的人要把门关...
