Describe tree database. Explain its common uses.

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what is the need of data structure

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Define path in a graph?

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Can you declare an array without assigning the size of an array?

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How many parts are there in a declaration statement?

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Define leaves?

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Now you are given an array of a characters (both ASCII and Kanji) and, an index into the array. The index points to the start of some character. Now you need to write a function to do a backspace (i.e. delete the character before the given index).

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Can you change size of array once created?

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what is the biggest advantage of linked lists?

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Is hashmap get thread safe?

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Does arraylist have index?

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Explain the term binding time?

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