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 > Perfect Power > Editorial

Perfect Power — Solution & Editorial

Back to the Problem

Try every exponent E from 2 to 60 (since 260 > 1018); for each, compute the integer E-th root via rounding + local adjustment and verify by exact exponentiation.

Complexity: O(60 · log) with exact verification

Watch out: Floating-point roots lie near 1018 — always confirm candidates with exact integer power.