Files
cpp-flashcards/org/study_deck_02/dsa/greedy/0846-hand-of-straights.org
T
tomatocream 1dec88aaf2 feat: populate note files with problem descriptions and code stubs
Add populate-notes.mjs that fetches problem descriptions and
Python/C++ code stubs from LeetCode's GraphQL API. Populated
all 197 NeetCode 150 note files with:
- Problem description (examples, constraints)
- Python code stub (function signature)
- C++ code stub (function signature + includes)

API responses cached in leetcode/.cache/leetcode/ for instant re-runs.
2026-06-01 17:22:07 +08:00

1.4 KiB

TODO 0846. 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 i^{th} 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 <= 10^{4}
  • 0 <= hand[i] <= 10^{9}
  • 1 <= groupSize <= hand.length

Note: This question is the same as 1296: https://leetcode.com/problems/divide-array-in-sets-of-k-consecutive-numbers/

TODO Approach

Write your approach here.

TODO Python

class Solution:
    def isNStraightHand(self, hand: List[int], groupSize: int) -> bool:

TODO C++

class Solution {
public:
    bool isNStraightHand(vector<int>& hand, int groupSize) {
        
    }
};