Hand of Straights
Detailed guide and Python implementation for the 'Hand of Straights' problem.
Problem Statement
Alice has some number of cards and she wants to rearrange the cards into groups so that each group is of size groupSize, and consists of groupSize consecutive cards. Given an integer array hand where hand[i] is the value written on the ith card and an integer groupSize, return True if she can rearrange the cards, or False otherwise.
Write a function isNStraightHand(hand: List[int], groupSize: int) -> bool.
- •1 <= len(hand) <= 10^4
- •0 <= hand[i] <= 10^9
- •1 <= groupSize <= len(hand)
Examples
hand = [1,2,3,6,2,3,4,7,8], groupSize = 3
True
[1,2,3], [2,3,4], [6,7,8] are consecutive groups of 3.
hand = [1,2,3,4,5], groupSize = 4
False
Cannot rearrange cards into consecutive groups of 4.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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