Explain different methods in which you can traverse a tree?
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An array having 100 elements have numbers from 1 to 99 randomly out of which any number is repeated. Find the repeated number in minimum time and space complexity.
Which is the parent class of hashmap class?
Convert the following infix expression to post fix notation ((a+2)*(b+4)) -1
Which data structures are applied when dealing with a recursive function?
Why do we use different types of data structures?
What package is arraylist?
Is Arraylist faster than Array? Why?
How to find if linked list has loop?
Give one example of right rotation.
what is atmost complete binary tree?
What is a static structure?
How many types of data structure are there?