2017年5月21日
551. 学生出席记录 Student Attendance Record I
摘要： You are given a string representing an attendance record for a student. The record only contains the following three characters:'A' : Absent.'L' : Late.'P' : Present.A student could be rewarded if his... 阅读全文
posted @ 2017-05-21 22:22 xiejunzhao 阅读(180) 评论(0) 推荐(0)