Mini OA: leaderboard
Keep each user's highest submission, then rank by score descending and name ascending.
What you’ll practice
This Level 1 exercise focuses on core integration in the Core Python curriculum. Solve the challenge prompt above using clear, idiomatic Python and the relevant language or standard-library tools.
Relevant Python reference: re — Regular expression operations.
Sample Test Cases
leaderboard([("aya", 72), ("dev", 88), ("aya", 91)])[('aya',91),('dev',88)]Further Reading
Reference Solution
Reveal Reference Solution
def leaderboard(rows: list[tuple[str, int]]) -> list[tuple[str, int]]: best = {} for name, score in rows: best[name] = max(score, best.get(name, score)) return sorted(best.items(), key=lambda row: (-row[1], row[0]))Pro Tips & Keyboard Shortcuts
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