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A Phone Directory can be designed using an array and a queue. The array stores whether a number is available. The queue stores the numbers that are not assigned to anyone. In the constructor, initialize the array and the queue. Initially, all elements in the array are true, and all numbers from 0 to maxNumbers - 1 are offered to the queue.


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Explanation: Initialization ( __init__ method): This method initializes the directory with a set of available numbers from 0 to maxNumbers-1 and an empty set of used numbers. Get a Number ( get method): This method provides an available number.


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// Init a phone directory containing a total of 3 numbers: 0, 1, and 2. PhoneDirectory directory = new PhoneDirectory(3); // It can return any available phone number.


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Design a Phone Directory which supports the following operations: get: Provide a number which is not assigned to anyone. check: Check if a number is available or not. release: Recycle or release a number. Example: // Init a phone directory containing a total of 3 numbers: 0, 1, and 2. PhoneDirectory directory = new PhoneDirectory(3);


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In-depth solution and explanation for LeetCode 379. Design Phone Directory in Python, Java, C++ and more. Intuitions, example walk through, and complexity analysis. Better than official and forum solutions.


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Step 2. Download a free copy of PhoneBook 1.0 to create a computer-based directory (see Resources). The program features a "Name," "Phone" and "Comments" field -- simply edit each field with your directory information. You can browse your directory, using the program's "Previous" and "Next" button. Alternatively, you can use the program's.


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379 Design Phone Directory Problem: Design a Phone Directory which supports the following operations: get: Provide a number which is not assigned to anyone. check: Check if a number is available or not. release: Recycle or release a number. Example: // Init a phone directory containing a total of 3 numbers: 0, 1, and 2.


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Step 7: Add phone listing items. After finishing all the above steps, now we're ready to add phone number lists to our directory. Visit the front-end submission form (created in step 2). Add the listing items with necessary information. You can also add business listings as the phone directory listing items.


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Welcome to Subscribe On Youtube: 379. Design Phone Directory. Design a Phone Directory which supports the following operations: get: Provide a number which is not assigned to anyone. check: Check if a number is available or not. release: Recycle or release a number.


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release: Recycle or release a number. Question Design a Phone Directory which supports the following operations: get: Provide a number which is not assigned to anyone. check: Check if a number is available or not. release: Recycle or release a number. Example: // Init a phone directory containing a total of 3 numbers: 0, 1, and.


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Design a datastructure for telephone directory for storing the name and phone number so that we can search for key given name and vice versa. We can use 2 hash maps as follows Map Map But it requires twice the memory.Can anyone suggest any other solution? algorithm data-structures Share Improve this question Follow


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Design a Phone Directory which supports the following operations: get: Provide a number which is not assigned to anyone. check: Check if a number is available or not. release: Recycle or release a number. Example: // Init a phone directory containing a total of 3 numbers: 0, 1, and 2. PhoneDirectory directory = new PhoneDirectory(3); // It can.


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Design a Phone Directory which supports the following operations: get: Provide a number which is not assigned to anyone. check: Check if a number is available or not. release: Recycle or release a number. Example: // Init a phone directory containing a total of 3 numbers: 0, 1, and 2. PhoneDirectory directory = new PhoneDirectory(3); // It can.