Package g0501_0600.s0551_student_attendance_record_i

Class Solution

  • public class Solution
extends Object
    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'.

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail

      • checkRecord

        public boolean checkRecord​(String s)