Task Management System (4-part OA)

Task Management System (4-part OA) The OA problem is titled Task Management System and contains 4 sub-questions. From the shared experience: Q3: the last part requires carefully reading the requirements (there is a subtle rule/boundary condition). Q4: requires using bisect, implying binary search / insertion on an ordered sequence. Since the post does not include the concrete I/O format, API details, supported operations, constraints, or examples, the original problem cannot be faithfully reconstructed into an answerable coding prompt. Therefore, no incomplete expansion is provided.