{ "data": { "question": { "questionId": "1407", "questionFrontendId": "1282", "categoryTitle": "Algorithms", "boundTopicId": 51303, "title": "Group the People Given the Group Size They Belong To", "titleSlug": "group-the-people-given-the-group-size-they-belong-to", "content": "

There are n people that are split into some unknown number of groups. Each person is labeled with a unique ID from 0 to n - 1.

\n\n

You are given an integer array groupSizes, where groupSizes[i] is the size of the group that person i is in. For example, if groupSizes[1] = 3, then person 1 must be in a group of size 3.

\n\n

Return a list of groups such that each person i is in a group of size groupSizes[i].

\n\n

Each person should appear in exactly one group, and every person must be in a group. If there are multiple answers, return any of them. It is guaranteed that there will be at least one valid solution for the given input.

\n\n

 

\n

Example 1:

\n\n
\nInput: groupSizes = [3,3,3,3,3,1,3]\nOutput: [[5],[0,1,2],[3,4,6]]\nExplanation: \nThe first group is [5]. The size is 1, and groupSizes[5] = 1.\nThe second group is [0,1,2]. The size is 3, and groupSizes[0] = groupSizes[1] = groupSizes[2] = 3.\nThe third group is [3,4,6]. The size is 3, and groupSizes[3] = groupSizes[4] = groupSizes[6] = 3.\nOther possible solutions are [[2,1,6],[5],[0,4,3]] and [[5],[0,6,2],[4,3,1]].\n
\n\n

Example 2:

\n\n
\nInput: groupSizes = [2,1,3,3,3,2]\nOutput: [[1],[0,5],[2,3,4]]\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "用户分组", "translatedContent": "

有 n 个人被分成数量未知的组。每个人都被标记为一个从 0 到 n - 1 的唯一ID 。

\n\n

给定一个整数数组 groupSizes ，其中 groupSizes[i] 是第 i 个人所在的组的大小。例如，如果 groupSizes[1] = 3 ，则第 1 个人必须位于大小为 3 的组中。

\n\n

返回一个组列表，使每个人 i 都在一个大小为 groupSizes[i] 的组中。

\n\n

每个人应该 恰好只 出现在 一个组 中，并且每个人必须在一个组中。如果有多个答案，返回其中 任何 一个。可以 保证 给定输入 至少有一个 有效的解。

\n\n

 

\n\n

示例 1：

\n\n
\n输入：groupSizes = [3,3,3,3,3,1,3]\n输出：[[5],[0,1,2],[3,4,6]]\n解释：\n第一组是 [5]，大小为 1，groupSizes[5] = 1。\n第二组是 [0,1,2]，大小为 3，groupSizes[0] = groupSizes[1] = groupSizes[2] = 3。\n第三组是 [3,4,6]，大小为 3，groupSizes[3] = groupSizes[4] = groupSizes[6] = 3。 \n其他可能的解决方案有 [[2,1,6],[5],[0,4,3]] 和 [[5],[0,6,2],[4,3,1]]。\n
\n\n

示例 2：

\n\n
\n输入：groupSizes = [2,1,3,3,3,2]\n输出：[[1],[0,5],[2,3,4]]\n
\n\n

 

\n\n

提示：

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