1535.

Find the Winner of an Array Game

Medium

Given an integer array arr of distinct integers and an integer k. A game will be played between the first two elements of the array (i.e. arr[0] and arr[1]). In each round of the game, we compare arr[0] with arr[1], the larger integer wins and remains at position 0 and the smaller integer moves to the end of the array. The game ends when an integer wins k consecutive rounds. Return the integer which will win the game. It is guaranteed that there will be a winner of the game. Example 1: Input: arr = [2,1,3,5,4,6,7], k = 2 Output: 5 Explanation: Let's see the rounds of the game: Round | arr | winner | win_count 1 | [2,1,3,5,4,6,7] | 2 | 1 2 | [2,3,5,4,6,7,1] | 3 | 1 3 | [3,5,4,6,7,1,2] | 5 | 1 4 | [5,4,6,7,1,2,3] | 5 | 2 So we can see that 4 rounds will be played and 5 is the winner because it wins 2 consecutive games. Example 2: Input: arr = [3,2,1], k = 10 Output: 3 Explanation: 3 will win the first 10 rounds consecutively. Example 3: Input: arr = [1,9,8,2,3,7,6,4,5], k = 7 Output: 9 Example 4: Input: arr = [1,11,22,33,44,55,66,77,88,99], k = 1000000000 Output: 99 Constraints: 2 <= arr.length <= 10^5 1 <= arr[i] <= 10^6 arr contains distinct integers. 1 <= k <= 10^9