
We toss a coin until a head appears. What is the expected number of coin tosses?
Select one:
4
1
0.5
2

Stack Overflow
How will you identify Stack Overflow?



Container Data Structures
What are the container data structures other than Arrays, Lists and Queues?

Concatenate two circularly single linked list into one circularly linked list
typedef struct listnode*list pointer;
typedef struct list node{
int data;
list pointer link;
};
list pointer concatenate(list pointer list1,list pointer list2){
} 

Which of the following abstract data types are NOT used by Integer Abstract Data type group?
Skill/Topic: Memory, Abstract Data Types, and AddressesA) ShortB) IntC) floatD) longExplanation: The integer abstract data type group consists of four abstract data types used to reserve memory to store whole numbers: byte, short, int , and long


The front of the stack in a stacklinked list ______________.
Skill/Topic: Stacks using Linked ListA) Back of the linked listB) Front of the linked listC) Middle of the Linked listD) None of the above

A linked list index is ____ that represents the position of a node in a linked list.
Skill/Topic: Stacks and Queues: Insert, Delete, Peek, FindA) An IntegerB) a variableC) a characterD) a boolean

The size of a tree is the number of nodes on the tree?
Skill/Topic: TreeA) TrueB) False


What is the running time to find the depth (dv) of a node v in a binary tree?
Select one:
O(1+dv)
O(n)
O(1)
O(dv) 
A multiway search tree
A multiway search tree has n items. The number of external nodes is Select one:
a) n2
b) logn
c) n
d) n+1

N be the number of nodes and m be number of edges in a graph
n be the number of nodes and m be number of edges in a graph.
The number of edges in any undirected connected graph is at least
Select one:
a) n
b) n1
c) None of the above
d) n(n1)/2

If C =1, what would be the appropriate value of n0 to show that n² +9n is O( n²)?
Select one:
None of the above
5
4
10

Let A be an adjacency matrix of a directed graph in G
Let A be an adjacency matrix of a directed graph in G. Then sum of all entries in the matrix is equal to
Select one:
a) twice the number of vertices in G
b) the number of edges in G
c) the number of vertices in G
d) twice the number of edges in G

Why do we Use a Multidimensional Array?
Skill/Topic: ArrayA) A multidimensional array can be useful to organize subgroups of data within an array. In addition to organizing data stored in elements of an array, a multidimensional array can store memory addresses of data in a pointer array and an array of pointers

Data Structure to Maintain Photographs Database
Your job is to build a data structure to maintain a set of photographs. Your photograph database should allow you to insert and search for photographs, as well as to designate some of the photographs as favourites by marking them. In more detail, your data structure should support the following operations:
Insert(x, t, m): inserts photograph x that was taken at time t. If m = 1, then the...
Data Structures Interview Questions
Ans