Package g1201_1300.s1282_group_the_people_given_the_group_size_they_belong_to

Class Solution

java.lang.Object

g1201_1300.s1282_group_the_people_given_the_group_size_they_belong_to.Solution

public class Solution
extends Object

1282 - Group the People Given the Group Size They Belong To.<p>Medium</p> <p>There are <code>n</code> people that are split into some unknown number of groups. Each person is labeled with a <strong>unique ID</strong> from <code>0</code> to <code>n - 1</code>.</p> <p>You are given an integer array <code>groupSizes</code>, where <code>groupSizes[i]</code> is the size of the group that person <code>i</code> is in. For example, if <code>groupSizes[1] = 3</code>, then person <code>1</code> must be in a group of size <code>3</code>.</p> <p>Return <em>a list of groups such that each person <code>i</code> is in a group of size <code>groupSizes[i]</code></em>.</p> <p>Each person should appear in <strong>exactly one group</strong> , and every person must be in a group. If there are multiple answers, <strong>return any of them</strong>. It is <strong>guaranteed</strong> that there will be <strong>at least one</strong> valid solution for the given input.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> groupSizes = [3,3,3,3,3,1,3]</p> <p><strong>Output:</strong> [[5],[0,1,2],[3,4,6]]</p> <p><strong>Explanation:</strong></p> <p>The first group is [5]. The size is 1, and groupSizes[5] = 1.</p> <p>The second group is [0,1,2]. The size is 3, and groupSizes[0] = groupSizes[1] = groupSizes[2] = 3.</p> <p>The third group is [3,4,6]. The size is 3, and groupSizes[3] = groupSizes[4] = groupSizes[6] = 3.</p> <p>Other possible solutions are [[2,1,6],[5],[0,4,3]] and [[5],[0,6,2],[4,3,1]].</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> groupSizes = [2,1,3,3,3,2]</p> <p><strong>Output:</strong> [[1],[0,5],[2,3,4]]</p> <p><strong>Constraints:</strong></p> <ul> <li><code>groupSizes.length == n</code></li> <li><code>1 <= n <= 500</code></li> <li><code>1 <= groupSizes[i] <= n</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
List<List<Integer>>	groupThePeople(int[] groupSizes)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

groupThePeople

public List<List<Integer>> groupThePeople(int[] groupSizes)