Package 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 java.lang.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
    Description
    Solution()
     

  • Method Summary

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

    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

    • dividePlayers

      public long dividePlayers(int[] skill)