Dr Supratik Chakraborty Department of Computer Science and Engineering IIT Bombay Session: Quiz and Practice Questions on Structures 1 Dr Deepak B
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IIT Bombay
Computer Programming
Dr. Deepak B Phatak Dr. Supratik Chakraborty Department of Computer Science and Engineering IIT Bombay
Session: Quiz and Practice Questions on Structures1 Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay
IIT Bombay
Q1. Consider the following structure definition
struct X { int Y; char Z;} varstruct X, the member Y of var is accessed as: (A) X.var.Y (B) var.Y (C) Y.var (D) var.X.Y2 Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay
Recap Quiz
IIT Bombay
Q2. Which of the following is/are true of
structures defined in C++?A.All members must have same data type
B.Cannot have arrays as members
C.Cannot have two different members with
same nameD.Cannot have more than 1000 members
3 Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay
Recap Quiz
IIT Bombay
Q3. Consider the structure definition
struct X {int Y, Z;} myVarX myVar = {0, 1};
the initialized values of members of myVar are: (A)Y: 0, Z: 0 (B) Y: 0, Z: 1 (C) Y: 1, Z: 0 (D) Y: 1, Z: 14 Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay
Recap Quiz
IIT Bombay
Q4. Suppose x and y are two variables of
struct myStruct. The assignment statement x = y; (A)Is an illegal statement in C++ (B)Makes the addresses of x and y the same (C) Copies values of all members of y to corresponding members of x (D) None of the above5 Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay
Recap Quiz
IIT Bombay
Q5. Suppose struct X is a structure with an
int member named Y. The declarationX abc[10];
declares an array of objects of type struct X.Which of the following accesses the
member Y of the 5th element of the array? (A) (abc.Y)[5] (B) (abc[5]).Y (C) abc.(Y[5]) (D) abc[Y.5]6 Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay
Recap Quiz
IIT Bombay
A binary tree is a data structure
(representation of information) in which data items are related by a parent-child relationship as follows:1.There is a designated data item called
2.Every other data item has a unique parent data item
7 Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay
Practice Question 1
IIT Bombay
3. Every data item has at most 2 children
data items4. There are designated data items called
items.8 Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay
Practice Question 1
IIT Bombay
9 Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay
Practice Question 1
root A leaf B leaf leafLeft child of root Right child of root
Descendant of A
Descendant of A
Descendant of A
Descendant of A
IIT Bombay Practice Question 1
Now consider the following structure definition:
struct TreeNode { int value; int leftChild, rightChild; Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay 10 Value leftChild right
ChildIIT Bombay Practice Question 1
We want to use an array A of objects of type structTreeNode to represent a binary tree as follows:
Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay 11 243 7 A[0]
3342 -1 A[3]
227-1 9 A[7]
IIT Bombay Practice Question 1
You are given an array A of size 100 of objects of struct TreeNode such that ANDThe values of A[i].leftChild and A[i].rightChild
are -1 for all i Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay 12IIT Bombay Practice Question 1A
You are required to write a function
void heapify(TreeNode *A) { // Your code comes herethat fills in the values of leftChild and rightChild members of all elements of A such that it represents a binary tree in which
Value of every node is <= Value of all its descendantsAssume that the root is A[0], and absence of children is indicated by having leftChild (or rightChild) being -1
Dr. Deepak B. Phatak & Dr. Supratik Chakraborty, IIT Bombay 13