Explain the priority queue?
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Explain stacks and queues in detail.
What is meant by arraylist?
Can we remove element from arraylist while iterating?
What does arraylist remove do?
Which is the parent class of linkedlist class?
Which is faster hashmap or concurrenthashmap?
What is binary search tree and explain its time complexity?
Define secondary clustering?
What is the types of data structure?
How are the elements of a 2d array are stored in the memory?
Give a good data structure for having n queues ( n not fixed) in a finite memory segment. You can have some data-structure separate for each queue. Try to use at least 90% of the memory space.
What the principle of quick sort and its complexity?