Hand of Straights
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 i^th card and an integer groupSize, return true if she can rearrange the cards, or false otherwise.
Note: This question is the same as 1296: https://leetcode.com/problems/divide-array-in-sets-of-k-consecutive-numbers/
Example 1
Input
hand = [1,2,3,6,2,3,4,7,8], groupSize = 3Output
trueAlice's hand can be rearranged as [1,2,3], [2,3,4], and [6,7,8].
Example 2
Input
hand = [1,2,3,4,5], groupSize = 4Output
falseAlice's hand cannot be rearranged into groups of 4.
Constraints
- 1 <= hand.length <= 10^4
- 0 <= hand[i] <= 10^9
- 1 <= groupSize <= hand.length