Package g0501_0600.s0551_student_attendance_record_i

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    551 - Student Attendance Record I.

    Easy

    You are given a string s representing an attendance record for a student where each character signifies whether the student was absent, late, or present on that day. The record only contains the following three characters:

    • 'A': Absent.

    • 'L': Late.

    • 'P': Present.

    The student is eligible for an attendance award if they meet both of the following criteria:

    • The student was absent ('A') for strictly fewer than 2 days total.

    • The student was never late ('L') for 3 or more consecutive days.

    Return true if the student is eligible for an attendance award, or false otherwise.

    Example 1:

    Input: s = "PPALLP"

    Output: true

    Explanation: The student has fewer than 2 absences and was never late 3 or more consecutive days.

    Example 2:

    Input: s = "PPALLL"

    Output: false

    Explanation: The student was late 3 consecutive days in the last 3 days, so is not eligible for the award.

    Constraints:

    • 1 <= s.length <= 1000

    • s[i] is either 'A', 'L', or 'P'.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Boolean checkRecord(String s)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait