{ "data": { "question": { "questionId": "406", "questionFrontendId": "406", "categoryTitle": "Algorithms", "boundTopicId": 1887, "title": "Queue Reconstruction by Height", "titleSlug": "queue-reconstruction-by-height", "content": "
You are given an array of people, people
, which are the attributes of some people in a queue (not necessarily in order). Each people[i] = [hi, ki]
represents the ith
person of height hi
with exactly ki
other people in front who have a height greater than or equal to hi
.
Reconstruct and return the queue that is represented by the input array people
. The returned queue should be formatted as an array queue
, where queue[j] = [hj, kj]
is the attributes of the jth
person in the queue (queue[0]
is the person at the front of the queue).
\n
Example 1:
\n\n\nInput: people = [[7,0],[4,4],[7,1],[5,0],[6,1],[5,2]]\nOutput: [[5,0],[7,0],[5,2],[6,1],[4,4],[7,1]]\nExplanation:\nPerson 0 has height 5 with no other people taller or the same height in front.\nPerson 1 has height 7 with no other people taller or the same height in front.\nPerson 2 has height 5 with two persons taller or the same height in front, which is person 0 and 1.\nPerson 3 has height 6 with one person taller or the same height in front, which is person 1.\nPerson 4 has height 4 with four people taller or the same height in front, which are people 0, 1, 2, and 3.\nPerson 5 has height 7 with one person taller or the same height in front, which is person 1.\nHence [[5,0],[7,0],[5,2],[6,1],[4,4],[7,1]] is the reconstructed queue.\n\n\n
Example 2:
\n\n\nInput: people = [[6,0],[5,0],[4,0],[3,2],[2,2],[1,4]]\nOutput: [[4,0],[5,0],[2,2],[3,2],[1,4],[6,0]]\n\n\n
\n
Constraints:
\n\n1 <= people.length <= 2000
0 <= hi <= 106
0 <= ki < people.length
假设有打乱顺序的一群人站成一个队列,数组 people
表示队列中一些人的属性(不一定按顺序)。每个 people[i] = [hi, ki]
表示第 i
个人的身高为 hi
,前面 正好 有 ki
个身高大于或等于 hi
的人。
请你重新构造并返回输入数组 people
所表示的队列。返回的队列应该格式化为数组 queue
,其中 queue[j] = [hj, kj]
是队列中第 j
个人的属性(queue[0]
是排在队列前面的人)。
\n\n
示例 1:
\n\n\n输入:people = [[7,0],[4,4],[7,1],[5,0],[6,1],[5,2]]\n输出:[[5,0],[7,0],[5,2],[6,1],[4,4],[7,1]]\n解释:\n编号为 0 的人身高为 5 ,没有身高更高或者相同的人排在他前面。\n编号为 1 的人身高为 7 ,没有身高更高或者相同的人排在他前面。\n编号为 2 的人身高为 5 ,有 2 个身高更高或者相同的人排在他前面,即编号为 0 和 1 的人。\n编号为 3 的人身高为 6 ,有 1 个身高更高或者相同的人排在他前面,即编号为 1 的人。\n编号为 4 的人身高为 4 ,有 4 个身高更高或者相同的人排在他前面,即编号为 0、1、2、3 的人。\n编号为 5 的人身高为 7 ,有 1 个身高更高或者相同的人排在他前面,即编号为 1 的人。\n因此 [[5,0],[7,0],[5,2],[6,1],[4,4],[7,1]] 是重新构造后的队列。\n\n\n
示例 2:
\n\n\n输入:people = [[6,0],[5,0],[4,0],[3,2],[2,2],[1,4]]\n输出:[[4,0],[5,0],[2,2],[3,2],[1,4],[6,0]]\n\n\n
\n\n
提示:
\n\n1 <= people.length <= 2000
0 <= hi <= 106
0 <= ki < people.length
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