Why is hashmap used?
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Are duplicates allowed in list?
Define collision in hashing?
What is a string or array type?
Is quicksort a stable sorting algorithm?
What does args stand for?
Of the following tree structure, which is, efficient considering space and time complexities? (a) Incomplete Binary Tree (b) Complete Binary Tree (c) Full Binary Tree (b) Complete Binary Tree.
Which sorting algorithm has minimum number of swaps?
What is the difference between arraylist and linkedlist?
Explain what are the notations used in evaluation of arithmetic expressions using prefix and postfix forms?
Define probing?
What is sequential search?
What is data type and its types?