Define root?
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Explain different methods in which you can traverse a tree?
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.
Why use a tuple instead of a list?
Complete structure of hashmap, very detail description, along with the basic coding of the hashmap internal implementation.
What is the average number of comparisons in a sequential search?
Define general trees?
What does each entry in the link list called?
What is the default size of an arraylist?
Does hashmap allow duplicate keys?
How will you reverse Linked List.
How does arraylist store data?
What is Another name of Dynamically allocating memory.