leetcode 551[easy]-- Student Attendance Record I
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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 attendance record doesn't contain more than one 'A' (absent) or more than two continuous 'L' (late).
You need to return whether the student could be rewarded according to his attendance record.
Example 1:
Input: "PPALLP"Output: True
Example 2:
Input: "PPALLL"Output: False
Seen this question in a real interview before? No
思路:str中有对于1个A或者连续3个以上的A就会被判断为False。 一行code搞定。
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