{ "data": { "question": { "questionId": "829", "questionFrontendId": "811", "categoryTitle": "Algorithms", "boundTopicId": 1675, "title": "Subdomain Visit Count", "titleSlug": "subdomain-visit-count", "content": "

A website domain "discuss.leetcode.com" consists of various subdomains. At the top level, we have "com", at the next level, we have "leetcode.com" and at the lowest level, "discuss.leetcode.com". When we visit a domain like "discuss.leetcode.com", we will also visit the parent domains "leetcode.com" and "com" implicitly.

\n\n

A count-paired domain is a domain that has one of the two formats "rep d1.d2.d3" or "rep d1.d2" where rep is the number of visits to the domain and d1.d2.d3 is the domain itself.

\n\n\n\n

Given an array of count-paired domains cpdomains, return an array of the count-paired domains of each subdomain in the input. You may return the answer in any order.

\n\n

 

\n

Example 1:

\n\n
\nInput: cpdomains = ["9001 discuss.leetcode.com"]\nOutput: ["9001 leetcode.com","9001 discuss.leetcode.com","9001 com"]\nExplanation: We only have one website domain: "discuss.leetcode.com".\nAs discussed above, the subdomain "leetcode.com" and "com" will also be visited. So they will all be visited 9001 times.\n
\n\n

Example 2:

\n\n
\nInput: cpdomains = ["900 google.mail.com", "50 yahoo.com", "1 intel.mail.com", "5 wiki.org"]\nOutput: ["901 mail.com","50 yahoo.com","900 google.mail.com","5 wiki.org","5 org","1 intel.mail.com","951 com"]\nExplanation: We will visit "google.mail.com" 900 times, "yahoo.com" 50 times, "intel.mail.com" once and "wiki.org" 5 times.\nFor the subdomains, we will visit "mail.com" 900 + 1 = 901 times, "com" 900 + 50 + 1 = 951 times, and "org" 5 times.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "子域名访问计数", "translatedContent": "

网站域名 \"discuss.leetcode.com\" 由多个子域名组成。顶级域名为 \"com\" ，二级域名为 \"leetcode.com\" ，最低一级为 \"discuss.leetcode.com\" 。当访问域名 \"discuss.leetcode.com\" 时，同时也会隐式访问其父域名 \"leetcode.com\" 以及 \"com\" 。

\n\n

计数配对域名 是遵循 \"rep d1.d2.d3\" 或 \"rep d1.d2\" 格式的一个域名表示，其中 rep 表示访问域名的次数，d1.d2.d3 为域名本身。

\n\n\n\n

给你一个 计数配对域名 组成的数组 cpdomains ，解析得到输入中每个子域名对应的 计数配对域名 ，并以数组形式返回。可以按 任意顺序 返回答案。

\n\n

 

\n\n

示例 1：

\n\n
\n输入：cpdomains = [\"9001 discuss.leetcode.com\"]\n输出：[\"9001 leetcode.com\",\"9001 discuss.leetcode.com\",\"9001 com\"]\n解释：例子中仅包含一个网站域名：\"discuss.leetcode.com\"。\n按照前文描述，子域名 \"leetcode.com\" 和 \"com\" 都会被访问，所以它们都被访问了 9001 次。
\n\n

示例 2：

\n\n
\n输入：cpdomains = [\"900 google.mail.com\", \"50 yahoo.com\", \"1 intel.mail.com\", \"5 wiki.org\"]\n输出：[\"901 mail.com\",\"50 yahoo.com\",\"900 google.mail.com\",\"5 wiki.org\",\"5 org\",\"1 intel.mail.com\",\"951 com\"]\n解释：按照前文描述，会访问 \"google.mail.com\" 900 次，\"yahoo.com\" 50 次，\"intel.mail.com\" 1 次，\"wiki.org\" 5 次。\n而对于父域名，会访问 \"mail.com\" 900 + 1 = 901 次，\"com\" 900 + 50 + 1 = 951 次，和 \"org\" 5 次。\n
\n\n

 

\n\n

提示：

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