Which is better hashmap or treemap?
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How to cut or remove an element from the array?
Define a priority queue?
How does quick sort work?
Why do we need algorithm?
what is a complexity of linear search,binery search?
What do you mean by shortest path?
What is the average number of comparisons in a sequential search?
Is treemap synchronized?
How many sorting techniques are there?
What is time complexity of quick sort?
Why is merge sort faster?
What is dangling pointer and how to avoid it?