What is meant by binary tree?
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Which is better array or linked list?
Mention the data structures which are used in graph implementation.
Give one example of right rotation.
Why linked list is required?
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).
Can hashmap store null values?
Is an arraylist an object?
What is the Difference between treemap and hashmap?
Is hashmap a data structure?
Define degree of the node?
What the principle of quick sort and its complexity?
What is indexing an array?