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fl#1643

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spencerkrebs wants to merge 2 commits into
super30admin:masterfrom
spencerkrebs:master
Open

fl#1643
spencerkrebs wants to merge 2 commits into
super30admin:masterfrom
spencerkrebs:master

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Level Order Traversal in Binary tree (bt-level-order.py)

Strengths:

  • Clean, well-documented code with clear comments
  • Correct use of BFS with deque for level order traversal
  • Proper edge case handling (empty tree returns empty list)
  • Good variable naming that makes the code self-explanatory
  • Efficient approach that mirrors the standard solution

Areas for Improvement:

  • The solution is already quite solid. One minor suggestion: you could add type hints for better code documentation (e.g., from typing import List, Optional and annotate return type as List[List[int]]).
  • Consider adding docstring to the method for even better documentation.

Overall, this is a correct and efficient implementation that demonstrates good understanding of BFS and level order traversal.

VERDICT: PASS


Scheduling Courses (course-sched.py)

Strengths:

  • Correct implementation of topological sorting using Kahn's algorithm
  • Clean and readable code structure
  • Proper handling of edge cases (empty prerequisites, all courses available initially)
  • Good use of Python standard library (deque)

Areas for Improvement:

  • The early return if not q: return False is redundant since the subsequent loop would naturally return False if the queue is empty
  • Consider moving the count == numCourses check to after the while loop for slightly cleaner logic: return count == numCourses
  • The variable count could be simplified by checking queue length instead of maintaining a separate counter

Overall, this is a solid solution that demonstrates good understanding of graph algorithms and cycle detection.

VERDICT: PASS

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