Why it is said that searching a node in a binary search tree is efficient than that of a simple binary tree?

1021

What is the difference between a hashmap and hashtable?

865

Differentiate null and void?

926

What are the advantages of array?

954

What are different dynamic memory allocation technique in c.

978

In what areas do data structures are applied?

998

What is sorting and classifying?

959

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 ].

1024

What differences exist between hashmap and hashtable?

1048

How to find the duplicate in an array?

1006

What is the complexity of selection sort?

885

How is a hashset implemented?

983

What are the Differences between map and hashmap?

1063

Explain what is a spanning tree?

1044

What is declaring array?

944