{ "data": { "question": { "questionId": "1657", "questionFrontendId": "1535", "categoryTitle": "Algorithms", "boundTopicId": 354089, "title": "Find the Winner of an Array Game", "titleSlug": "find-the-winner-of-an-array-game", "content": "
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.
\n\nIt is guaranteed that there will be a winner of the game.
\n\n\n
Example 1:
\n\n\nInput: arr = [2,1,3,5,4,6,7], k = 2\nOutput: 5\nExplanation: Let's see the rounds of the game:\nRound | arr | winner | win_count\n 1 | [2,1,3,5,4,6,7] | 2 | 1\n 2 | [2,3,5,4,6,7,1] | 3 | 1\n 3 | [3,5,4,6,7,1,2] | 5 | 1\n 4 | [5,4,6,7,1,2,3] | 5 | 2\nSo we can see that 4 rounds will be played and 5 is the winner because it wins 2 consecutive games.\n\n\n
Example 2:
\n\n\nInput: arr = [3,2,1], k = 10\nOutput: 3\nExplanation: 3 will win the first 10 rounds consecutively.\n\n\n
\n
Constraints:
\n\n2 <= arr.length <= 105
1 <= arr[i] <= 106
arr
contains distinct integers.1 <= k <= 109
给你一个由 不同 整数组成的整数数组 arr
和一个整数 k
。
每回合游戏都在数组的前两个元素(即 arr[0]
和 arr[1]
)之间进行。比较 arr[0]
与 arr[1]
的大小,较大的整数将会取得这一回合的胜利并保留在位置 0
,较小的整数移至数组的末尾。当一个整数赢得 k
个连续回合时,游戏结束,该整数就是比赛的 赢家 。
返回赢得比赛的整数。
\n\n题目数据 保证 游戏存在赢家。
\n\n\n\n
示例 1:
\n\n输入:arr = [2,1,3,5,4,6,7], k = 2\n输出:5\n解释:一起看一下本场游戏每回合的情况:\n\n因此将进行 4 回合比赛,其中 5 是赢家,因为它连胜 2 回合。\n\n\n
示例 2:
\n\n输入:arr = [3,2,1], k = 10\n输出:3\n解释:3 将会在前 10 个回合中连续获胜。\n\n\n
示例 3:
\n\n输入:arr = [1,9,8,2,3,7,6,4,5], k = 7\n输出:9\n\n\n
示例 4:
\n\n输入:arr = [1,11,22,33,44,55,66,77,88,99], k = 1000000000\n输出:99\n\n\n
\n\n
提示:
\n\n2 <= arr.length <= 10^5
1 <= arr[i] <= 10^6
arr
所含的整数 各不相同 。1 <= k <= 10^9
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