## Problem Given a list of 5 card strings (e.g., `"AS"`, `"10H"`, `"KD"`), classify the poker hand. Cards are rank + suit where rank is one of `A,2,3,...,10,J,Q,K` and suit is `C,D,H,S`. Return the hand rank as a string: `"royal_flush"`, `"straight_flush"`, `"four_of_a_kind"`, `"full_house"`, `"flush"`, `"straight"`, `"three_of_a_kind"`, `"two_pair"`, `"one_pair"`, `"high_card"` ```python def classify_hand(cards: list[str]) -> str: ... ``` **Example:** ``` classify_hand(["10H","JH","QH","KH","AH"]) -> "royal_flush" classify_hand(["2C","2D","2H","3S","3C"]) -> "full_house" classify_hand(["AS","2C","3D","4H","5S"]) -> "straight" ``` **Note:** Ace can be low (A-2-3-4-5) or high (10-J-Q-K-A). ## Follow-ups - How do you handle the low-ace straight edge case cleanly? - Extend to compare two hands and return the winner, including tiebreakers (e.g., higher pair wins). - What changes if the game uses a 54-card deck with 2 Jokers that act as wild cards?

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Card Hand Validation - Coding Interview

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Problem Given a list of 5 card strings (e.g., "AS", "10H", "KD"), classify the poker hand. Cards are rank + suit where rank is one of A,2,3,...,10,J,Q,K and suit is C,D,H,S. Return the hand rank as a string: "royal_flush", "straight_flush", "four_of_a_kind", "full_house", "flush", "straight", "three_of_a_kind", "two_pair", "one_pair", "high_card" Example: Note: Ace can be low (A-2-3-4-5) or high (10-J-Q-K-A). Follow-ups How do you handle the low-ace straight edge case cleanly? Extend to compare…

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It covers the following topics: Q3, Coding, General Coding Assessment, Strings .

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Card Hand Validation - Coding Interview

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