1p3a Experience · Feb 2026 · Los Angeles

Mining Block

Interview Experience

Mining Block ## Understanding the Problem In blockchain systems, miners pick transactions to put into a block. A block has a specific size limit (capacity). Each transaction has a specific size and

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About This Question

This is a candidate experience report from a coinbase interview for a swe role reported in 2025.

It covers the following topics: Heap, Greedy, Dynamic Programming, Tree, Dynamic Programming, Sql, Greedy, Sorting, Queue, Queue .