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Coding · System design
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Design a social feed system that allows users to share their sports betting slips, view others' bets, and interact with shared content through likes, comments…
Companies: Fanduel
Last reported Jan 2026
Insert a given interval into a sorted list of non-overlapping intervals and merge any overlaps so the final list remains sorted and disjoint. The core…
Companies: Fanduel, Google, Meta
Last reported Jan 2026
Given a list of intervals, merge all overlapping (including touching endpoints) intervals and return the minimal set of non-overlapping intervals that cover them. Key pattern…
Companies: Fanduel, Amazon, Antithesis, Apple +16
Array · Quicksort · Sorting
Last reported Jan 2026