本文主要是介绍leetcode#551. Student Attendance Record I,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
题目
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
理解
没啥好理解的,水题
代码
class Solution(object):def checkRecord(self, s):""":type s: str:rtype: bool"""a = l = 0for i in s:if i == 'A':a += 1l = 0elif i == 'L':l += 1else:l = 0if a > 1 or l > 2:return Falsereturn True
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