[Answer] Find Players With Zero or One Losses solution leetcode

[Answer] Find Players With Zero or One Losses solution leetcode

 
You are given an array of integer matches where matches[i] = [winner, loseri] indicates that player winri defeated player loseri in a match. Return a list response of size 2 where:
  • answer[0] is a list of all players that have not lost any matches.
  • answer[1] is a list of all players that have lost exactly one match.
The values in the two lists should be returned in increasing order.

[Answer] Find Players With Zero or One Losses solution leetcode

  • You should only consider the players that have played at least one match.
  • The testcases will be generated such that no two matches will have the same outcome.

[Answer] Find Players With Zero or One Losses solution leetcode

Input: matches = [[1,3],[2,3],[3,6],[5,6],[5,7],[4,5],[4,8],[4,9],[10,4],[10,9]]
Output: [[1,2,10],[4,5,7,8]]
Explanation:
Players 1, 2, and 10 have not lost any matches.
Players 4, 5, 7, and 8 each have lost one match.
Players 3, 6, and 9 each have lost two matches.
Thus, answer[0] = [1,2,10] and answer[1] = [4,5,7,8].
Example 2:
Input: matches = [[2,3],[1,3],[5,4],[6,4]]
Output: [[1,2,5,6],[]]
Explanation:
Players 1, 2, 5, and 6 have not lost any matches.
Players 3 and 4 each have lost two matches.
Thus, answer[0] = [1,2,5,6] and answer[1] = [].

[Coding] Find Players With Zero or One Losses solution leetcode

  • 1 <= matches.length <= 105
  • matches[i].length == 2
  • 1 <= winneri, loseri <= 105
  • winneri != loseri
  • All matches[i] are unique.

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