g2401_2500.s2491_divide_players_into_teams_of_equal_skill

Class Solution

java.lang.Object

g2401_2500.s2491_divide_players_into_teams_of_equal_skill.Solution

public class Solution
extends Object

2491 - Divide Players Into Teams of Equal Skill.

Medium

You are given a positive integer array skill of even length n where skill[i] denotes the skill of the ith player. Divide the players into n / 2 teams of size 2 such that the total skill of each team is equal.

The chemistry of a team is equal to the product of the skills of the players on that team.

Return the sum of the chemistry of all the teams, or return -1 if there is no way to divide the players into teams such that the total skill of each team is equal.

Example 1:

Input: skill = [3,2,5,1,3,4]

Output: 22

Explanation: Divide the players into the following teams: (1, 5), (2, 4), (3, 3), where each team has a total skill of 6. The sum of the chemistry of all the teams is: 1 * 5 + 2 * 4 + 3 * 3 = 5 + 8 + 9 = 22.

Example 2:

Input: skill = [3,4]

Output: 12

Explanation: The two players form a team with a total skill of 7. The chemistry of the team is 3 * 4 = 12.

Example 3:

Input: skill = [1,1,2,3]

Output: -1

Explanation: There is no way to divide the players into teams such that the total skill of each team is equal.

Constraints:

• 2 <= skill.length <= 105
• skill.length is even.
• 1 <= skill[i] <= 1000

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
long	dividePlayers(int[] skill)

Methods inherited from class java.lang.Object

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

Constructor Detail

Solution

public Solution()

Method Detail

dividePlayers

public long dividePlayers(int[] skill)