Hiring process8 levels
  1. 1 IQ Test
  2. 2 Additional Online Test (If Required)
  3. 3 Office Interview with Hiring Manager
  4. 4 Unpaid Test Task (Motivation Check)
  5. 5 Paid Test Task and Follow-Up Interview
  6. 6 Iterative Paid Test Tasks
  7. 7 Office Verification
  8. 8 Final Interview with the Founder

Problems > 12-Hour to 24-Hour > Editorial

12-Hour to 24-Hour — Solution & Editorial

Back to the Problem

The two edge cases carry the problem: 12AM → 00, 12PM → 12; otherwise add 12 for PM.

Complexity: O(1)

Watch out: 12AM is midnight (00), 12PM is noon (12) — both break the naive +12 rule.