Created
May 20, 2026 16:59
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| """ | |
| Live coding question | |
| You're given a list of charge dates for a single user at a single merchant. | |
| Classify the billing cadence. | |
| Return one of: "weekly", "monthly", "yearly", "unknown". | |
| Examples: | |
| [2026-01-05, 2026-02-04, 2026-03-06, 2026-04-05] -> "monthly" | |
| [2026-01-01, 2026-01-08, 2026-01-15, 2026-01-22] -> "weekly" | |
| [2024-03-15, 2025-03-14, 2026-03-16] -> "yearly" | |
| [2026-01-01, 2026-03-15, 2026-08-02] -> "unknown" | |
| [2026-01-01] -> "unknown" | |
| """ | |
| from datetime import date | |
| def classify_cadence(charge_dates: list[date]) -> str: | |
| # TODO: implement | |
| raise NotImplementedError |
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