Leetcode Problem 630. Course Schedule III

630. Course Schedule III

Leetcode Solutions

Approach: Priority Queue

  1. Sort the courses by their end days in ascending order.
  2. Initialize a priority queue (max-heap) to keep track of the durations of the courses taken.
  3. Initialize a variable time to keep track of the current time.
  4. Iterate through the sorted courses: a. If the current course can be taken before its end day, add its duration to the priority queue and update time. b. If the current course cannot be taken directly, check the maximum duration in the priority queue. c. If the maximum duration is greater than the current course's duration, replace it with the current course, adjust time, and update the priority queue.
  5. The size of the priority queue at the end represents the maximum number of courses that can be taken.
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Approach: Recursion with Memoization

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