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 > Parse the Number > Editorial

Parse the Number — Solution & Editorial

Back to the Problem

A small state machine: whitespace → sign → digits; accumulate and clamp at the end (or during, to avoid overflow in fixed-width languages).

Complexity: O(length)

Watch out: Clamp to INT_MIN/INT_MAX; and 'words 987' parses to 0 because the first non-space character is not a sign or digit.