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5 interview questions available
Answer k-step ancestor queries in a rooted tree
medium
Jan 20, 2026
Write a quarterly SQL report and a bash max-file script
medium
Jan 20, 2026
Answer ancestor-walk queries on a rooted tree
easy
Jan 17, 2026
Compute per-coin quarterly amounts and totals
easy
Jan 17, 2026
Return the largest file size in a directory
easy
Jan 17, 2026