Does treeset allow duplicates?
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How many parts are there in a declaration statement using data structures?
an array of size N in which every number is between 1 and N, determine if there are any duplicates in it. You are allowed to destroy the array if you like. [ I ended up giving about 4 or 5 different solutions for this, each supposedly better than the others ].
What is peek in stack?
If we try to add duplicate key to the hashmap, what will happen?
What is difference between hashmap and linkedhashmap?
What is data and data types?
How many types of data structures are there?
What are hashmaps good for?
What is the two-dimensional array?
What is the difference between Array and Arraylist?
Write an algorithm to show the postfix expression with the input given as : a b + c d +*f ? .
What are the categories of avl rotations?