Define an algorithm.
Check if duplicates exist in an array of N which has range 1 to N.
How many types of lists are there?
Which is the parent class of list
How to create an Array?
How do you reference all the elements in a one-dimension array?
Is pointer a variable in data structure?
How does a selection sort work for an array?
What is difference between concurrenthashmap and hashtable?
What is thread and types of thread?
Do all declaration statements result in a fixed reservation in memory?
Tell us the difference between merge and quick sort. Which one would you prefer and why?
How do arrays work?
How does selection sort work?
What is the difference between hashset and hashmap?