Package g3201_3300.s3238_find_the_number_of_winning_players

Class Solution

java.lang.Object
g3201_3300.s3238_find_the_number_of_winning_players.Solution
public class Solution extends Object
3238 - Find the Number of Winning Players.

Easy

You are given an integer n representing the number of players in a game and a 2D array pick where pick[i] = [xi, yi] represents that the player xi picked a ball of color yi.

Player i wins the game if they pick strictly more than i balls of the same color. In other words,

  • Player 0 wins if they pick any ball.
  • Player 1 wins if they pick at least two balls of the same color.
  • …
  • Player i wins if they pick at leasti + 1 balls of the same color.

Return the number of players who win the game.

Note that multiple players can win the game.

Example 1:

Input: n = 4, pick = [[0,0],[1,0],[1,0],[2,1],[2,1],[2,0]]

Output: 2

Explanation:

Player 0 and player 1 win the game, while players 2 and 3 do not win.

Example 2:

Input: n = 5, pick = [[1,1],[1,2],[1,3],[1,4]]

Output: 0

Explanation:

No player wins the game.

Example 3:

Input: n = 5, pick = [[1,1],[2,4],[2,4],[2,4]]

Output: 1

Explanation:

Player 2 wins the game by picking 3 balls with color 4.

Constraints:

  • 2 <= n <= 10
  • 1 <= pick.length <= 100
  • pick[i].length == 2
  • 0 <= xi <= n - 1
  • 0 <= yi <= 10

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • winningPlayerCount

      public int winningPlayerCount(int n, int[][] pick)