📕 FREE Guide2026 Quant Firm Tier List

Optiver Interview Question

OptiverTrader Interview

Find the largest 5-digit number such that the pairwise digit sums of the numbers are unique. Find the smallest 5-digit number with the same property. Explain why it doesn't work for 7-digit numbers. Does it work for 6-digit numbers?

Unlock the Full Solution

Enter your email to get instant access to the complete solution, explanation, and similar practice problems.

Want to ace more quant interviews?

Get access to our comprehensive interview preparation course with hundreds of real interview questions, detailed solutions, and personalized mentorship from quants at top firms.

Start Your Prep Today

Disclaimer: We are not affiliated with Optiver in any way. This question is sourced from interviewees and public sources and may not be accurate or reflective of the company's actual interview process.