For weekly contest 509.

Resolution criteria

This market will resolve to the exact number of problems classified as "Medium" difficulty in LeetCode's Weekly Contest 509.

• Source of Truth: The official LeetCode Weekly Contest 509 page (leetcode.com/contest/weekly-contest-509) and the official individual problem listings once the contest is live or finalized.

• Classification: The difficulty classification ("Easy", "Medium", "Hard") officially assigned by LeetCode on the problem pages at the time of the contest.

• Postponement/Cancellation: If Weekly Contest 509 is cancelled or fails to take place by July 15, 2026, the market will resolve N/A.

Background

LeetCode Weekly Contests typically feature 4 algorithmic problems. While the standard distribution is often 1 "Easy", 2 "Medium", and 1 "Hard" problem, LeetCode occasionally alters this composition. This market tracks the exact count of "Medium" problems included in the problem set for Weekly Contest 509, scheduled for July 4, 2026.

This description was generated by AI. Review and verify everything here yourself. You can edit, replace, or delete any part of this description, including the resolution criteria. You do not need to trust the AI output.