{ "data": { "question": { "questionId": "2334", "questionFrontendId": "6044", "categoryTitle": "Algorithms", "boundTopicId": 1440736, "title": "Number of Flowers in Full Bloom", "titleSlug": "number-of-flowers-in-full-bloom", "content": "

You are given a 0-indexed 2D integer array flowers, where flowers[i] = [starti, endi] means the ith flower will be in full bloom from starti to endi (inclusive). You are also given a 0-indexed integer array persons of size n, where persons[i] is the time that the ith person will arrive to see the flowers.

\n\n

Return an integer array answer of size n, where answer[i] is the number of flowers that are in full bloom when the ith person arrives.

\n\n

 

\n

Example 1:

\n\"\"\n
\nInput: flowers = [[1,6],[3,7],[9,12],[4,13]], persons = [2,3,7,11]\nOutput: [1,2,2,2]\nExplanation: The figure above shows the times when the flowers are in full bloom and when the people arrive.\nFor each person, we return the number of flowers in full bloom during their arrival.\n
\n\n

Example 2:

\n\"\"\n
\nInput: flowers = [[1,10],[3,3]], persons = [3,3,2]\nOutput: [2,2,1]\nExplanation: The figure above shows the times when the flowers are in full bloom and when the people arrive.\nFor each person, we return the number of flowers in full bloom during their arrival.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "花期内花的数目", "translatedContent": "

给你一个下标从 0 开始的二维整数数组 flowers ，其中 flowers[i] = [starti, endi] 表示第 i 朵花的 花期 从 starti 到 endi （都 包含）。同时给你一个下标从 0 开始大小为 n 的整数数组 persons ，persons[i] 是第 i 个人来看花的时间。

\n\n

请你返回一个大小为 n 的整数数组 answer ，其中 answer[i]是第 i 个人到达时在花期内花的 数目 。

\n\n

 

\n\n

示例 1：

\n\n

\"\"

\n\n
输入：flowers = [[1,6],[3,7],[9,12],[4,13]], persons = [2,3,7,11]\n输出：[1,2,2,2]\n解释：上图展示了每朵花的花期时间，和每个人的到达时间。\n对每个人，我们返回他们到达时在花期内花的数目。\n
\n\n

示例 2：

\n\n

\"\"

\n\n
输入：flowers = [[1,10],[3,3]], persons = [3,3,2]\n输出：[2,2,1]\n解释：上图展示了每朵花的花期时间，和每个人的到达时间。\n对每个人，我们返回他们到达时在花期内花的数目。\n
\n\n

 

\n\n

提示：

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(listof exact-integer?) (listof exact-integer?))\n\n )", "__typename": "CodeSnippetNode" }, { "lang": "Erlang", "langSlug": "erlang", "code": "-spec full_bloom_flowers(Flowers :: [[integer()]], Persons :: [integer()]) -> [integer()].\nfull_bloom_flowers(Flowers, Persons) ->\n .", "__typename": "CodeSnippetNode" }, { "lang": "Elixir", "langSlug": "elixir", "code": "defmodule Solution do\n @spec full_bloom_flowers(flowers :: [[integer]], persons :: [integer]) :: [integer]\n def full_bloom_flowers(flowers, persons) do\n\n end\nend", "__typename": "CodeSnippetNode" } ], "stats": "{\"totalAccepted\": \"2K\", \"totalSubmission\": \"4.9K\", \"totalAcceptedRaw\": 2008, \"totalSubmissionRaw\": 4873, \"acRate\": \"41.2%\"}", "hints": [ "Notice that for any given time t, the number of flowers blooming at time t is equal to the number of flowers that have started blooming minus the number of flowers that have already stopped blooming.", "We can obtain these values efficiently using binary search.", "We can store the starting times in sorted order, which then allows us to binary search to find how many flowers have started blooming for a given time t.", "We do the same for the ending times to find how many flowers have stopped blooming at time t." ], "solution": null, "status": null, "sampleTestCase": "[[1,6],[3,7],[9,12],[4,13]]\n[2,3,7,11]", "metaData": "{\n \"name\": \"fullBloomFlowers\",\n \"params\": [\n {\n \"name\": \"flowers\",\n \"type\": \"integer[][]\"\n },\n {\n \"type\": \"integer[]\",\n \"name\": \"persons\"\n }\n ],\n \"return\": {\n \"type\": \"integer[]\"\n }\n}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "envInfo": "{\"cpp\":[\"C++\",\"

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