Why is hashmap used?
Can we add heterogeneous elements into treemap?
What is a simple graph?
What is the non linear data structure?
Describe the complexity of Quick Sort
Explain Queue
Which is faster array or linked list?
When should structures be passed by values or by reference?
What is difference between for loop and foreach?
an array t[100] which contains numbers between 1..99. Return the duplicated value. Try both O(n) and O(n-square).
What are the advantages of bubble sort?
What is the main advantage of a linked list?
Can a class have a constructor?