Course schedule
There are numCourses courses (0..numCourses-1) and prerequisite pairs [a, b] meaning b must come before a. Return whether all courses can be finished.
Implement
can_finish(num_courses: int, prerequisites: list[list[int]]) → boolExamples
in
[2,[[1,0]]]outtrueWhat a strong answer looks like
State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.
0:00 of about 35 min
solution.py
InputExpectedGot
[2,[[1,0]]]truenot run yetsample