What are the 3 types of variables?
How would you reverse characters of an array without using indexing in the array.
Why do we use binary search?
What’s the difference between enumeration and iterator interfaces?
How does dynamic memory allocation help in managing data?
Which is faster hashset or treeset?
What is time complexity of binary search?
Why is data structure used?
Name some applications which use linked lists.
Why is selection sort used?
What is hashing with example?
In Data Structure, write output of given program.
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How does linkedhashset work internally?