Leetcode Problem 551. Student Attendance Record I

551. Student Attendance Record I

Leetcode Solutions

Approach # Single pass Solution (Without indexOf method)

  1. Initialize absentCount to 0 and consecutiveLate to 0.
  2. Iterate through each character in the string s. a. If the current character is 'A', increment absentCount. b. If absentCount is greater than 1, return false. c. If the current character is 'L', increment consecutiveLate. d. If the current character is not 'L', reset consecutiveLate to 0. e. If consecutiveLate reaches 3, return false.
  3. If the loop completes without returning false, return true.
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Approach # Simple Solution

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