{ "data": { "question": { "questionId": "1682", "questionFrontendId": "1560", "categoryTitle": "Algorithms", "boundTopicId": 381294, "title": "Most Visited Sector in a Circular Track", "titleSlug": "most-visited-sector-in-a-circular-track", "content": "

Given an integer n and an integer array rounds. We have a circular track which consists of n sectors labeled from 1 to n. A marathon will be held on this track, the marathon consists of m rounds. The ith round starts at sector rounds[i - 1] and ends at sector rounds[i]. For example, round 1 starts at sector rounds[0] and ends at sector rounds[1]

\n\n

Return an array of the most visited sectors sorted in ascending order.

\n\n

Notice that you circulate the track in ascending order of sector numbers in the counter-clockwise direction (See the first example).

\n\n

 

\n

Example 1:

\n\"\"\n
\nInput: n = 4, rounds = [1,3,1,2]\nOutput: [1,2]\nExplanation: The marathon starts at sector 1. The order of the visited sectors is as follows:\n1 --> 2 --> 3 (end of round 1) --> 4 --> 1 (end of round 2) --> 2 (end of round 3 and the marathon)\nWe can see that both sectors 1 and 2 are visited twice and they are the most visited sectors. Sectors 3 and 4 are visited only once.
\n\n

Example 2:

\n\n
\nInput: n = 2, rounds = [2,1,2,1,2,1,2,1,2]\nOutput: [2]\n
\n\n

Example 3:

\n\n
\nInput: n = 7, rounds = [1,3,5,7]\nOutput: [1,2,3,4,5,6,7]\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "圆形赛道上经过次数最多的扇区", "translatedContent": "

给你一个整数 n 和一个整数数组 rounds 。有一条圆形赛道由 n 个扇区组成，扇区编号从 1 到 n 。现将在这条赛道上举办一场马拉松比赛，该马拉松全程由 m 个阶段组成。其中，第 i 个阶段将会从扇区 rounds[i - 1] 开始，到扇区 rounds[i] 结束。举例来说，第 1 阶段从 rounds[0] 开始，到 rounds[1] 结束。

\n\n

请你以数组形式返回经过次数最多的那几个扇区，按扇区编号 升序 排列。

\n\n

注意，赛道按扇区编号升序逆时针形成一个圆（请参见第一个示例）。

\n\n

 

\n\n

示例 1：

\n\n

\"\"

\n\n
输入：n = 4, rounds = [1,3,1,2]\n输出：[1,2]\n解释：本场马拉松比赛从扇区 1 开始。经过各个扇区的次序如下所示：\n1 --> 2 --> 3（阶段 1 结束）--> 4 --> 1（阶段 2 结束）--> 2（阶段 3 结束，即本场马拉松结束）\n其中，扇区 1 和 2 都经过了两次，它们是经过次数最多的两个扇区。扇区 3 和 4 都只经过了一次。
\n\n

示例 2：

\n\n
输入：n = 2, rounds = [2,1,2,1,2,1,2,1,2]\n输出：[2]\n
\n\n

示例 3：

\n\n
输入：n = 7, rounds = [1,3,5,7]\n输出：[1,2,3,4,5,6,7]\n
\n\n

 

\n\n

提示：

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