Practice Keys and Rooms
Master the Keys and Rooms LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Keys and Rooms
There are n rooms labeled from 0 to n - 1 and all the rooms are locked except for room 0. Your goal is to visit all the rooms. However, you cannot enter a locked room without having its key. When you visit a room, you may find a set of distinct keys in it. Each key has a number on it, denoting which room it unlocks, and you can take all of them with you to unlock the other rooms. Given an array rooms where rooms[i] is the set of keys that you can obtain if you visited room i, return true if you can visit all the rooms, or false otherwise.
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Understanding the Keys and Rooms Problem
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Problem Statement
There are n rooms labeled from 0 to n - 1 and all the rooms are locked except for room 0. Your goal is to visit all the rooms. However, you cannot enter a locked room without having its key. When you visit a room, you may find a set of distinct keys in it. Each key has a number on it, denoting which room it unlocks, and you can take all of them with you to unlock the other rooms. Given an array rooms where rooms[i] is the set of keys that you can obtain if you visited room i, return true if you can visit all the rooms, or false otherwise.
Source: Keys and Rooms on LeetCode. Use the original task for its coding environment and submissions.
Keys and Rooms
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How PhantomCodeAI Helps
Get real-time assistance for Keys and Rooms problems during coding interviews. PhantomCodeAI provides instant solutions and explanations.
Examples
# Example 1
rooms = [[1],[2],[3],[]]
true
# Example 2
rooms = [[1,3],[3,0,1],[2],[0]]
false
Constraints
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