Meta

Primary = company-Meta-thirtydays.csv (~June 2025 LeetCode 30-day tag snapshot, 55 rows) sorted by Frequency descending; take the top 47 non-Database problems (all of the 63.8-and-above tiers plus the best 30 of the 53.8 tier, dropping 5 low-signal rows: Maximize Active Section with Trade I, Smallest Divisible Digit Product II, Vertical Order Traversal of a Binary Tree, Remove Linked List Elements, Merge Strings Alternately); then append the 13 combined hxu296 Meta/Facebook top-15-by-occurrence classics the snapshot missed (2 already in base: Subarray Sum Equals K, Kth Largest Element in an Array) = 60 total (cap).