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Java Solution for LeetCode algorithm problems, continually updating
846\. Hand of Straights
Medium
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.
**Example 1:**
**Input:** hand = [1,2,3,6,2,3,4,7,8], groupSize = 3
**Output:** true
**Explanation:** Alice's hand can be rearranged as [1,2,3],[2,3,4],[6,7,8]
**Example 2:**
**Input:** hand = [1,2,3,4,5], groupSize = 4
**Output:** false
**Explanation:** Alice's hand can not be rearranged into groups of 4.
**Constraints:**
* 1 <= hand.length <= 104
* 0 <= hand[i] <= 109
* `1 <= groupSize <= hand.length`
**Note:** This question is the same as 1296: [https://leetcode.com/problems/divide-array-in-sets-of-k-consecutive-numbers/](https://leetcode.com/problems/divide-array-in-sets-of-k-consecutive-numbers/)