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g0801_0900.s0846_hand_of_straights.readme.md Maven / Gradle / Ivy

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/)