Subdomain Visit Count at Roblox

Medium77.2% acceptance

This problem has 75.0% frequency at Roblox.

Problem Description

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 `"le...

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Array Hash Table String Counting

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