IEOR Programming Test

1.

1 point

What is the correct output for the following program?

#include
int main()
{
int arr[1]={10};
printf("%d\n", 0[arr]);
return 0;
}

0

1

Syntax Error

10

2.

1 point

What will be the output of the program?

#include
int main()
{
float arr[] = {12.4, 2.3, 4.5, 6.7};
printf("%d\n", sizeof(arr)/sizeof(arr[0]));
return 0;
}

6

4

5

7

3.

1 point

Identify which of the following are declarations.
I. long x;
II. float square (float x){...}
III. double pow(double, double);

I & III

II

III

I

4.

1 point

The expression of the right hand side of || operators doesn't get evaluated if the left hand side determines the outcome.

True

False

5.

1 point

Which of the following is correct about class and structure?

class data members are public by default while that of structure are private.

Pointer to structure or classes cannot be declared.

class data members are private by default while that of structure are public by default.

class can have member functions while structure cannot.

6.

1 point

Choose the correct choices to complete the following sentences.
__________ defines a set of possible values and a set of operations for an entity.
__________ is some memory that holds a value of some type.

variable, object

variable, type

object, type

type, object

7.

1 point

Consider the following recursive function fun(x, y). What is the value of fun(4, 3). Note that recursive function is a form of a function which calls itself.

int fun(int x, int y)
{
if (x == 0)
return y;
return fun(x - 1, x + y);
}

13

9

10

12

8.

1 point

Binary tree is a data structure in which each node can have at most 2 child nodes. Height of a binary tree is a path length from the bottom-most node to the root node. What is the maximum no. of total nodes and maximum no. of leaf nodes a binary tree with height ‘h’ can have? Note that leaf nodes are the nodes with no child nodes.

2^(h/2) , 2^((h+1)/2)-1

2^(h+1)-1, 2^h

2^h , 2^(h+1)-1

2^(h+1), 2^h

9.

1 point

Which of the following is not logical operator?

&

||

&&

!

10.

1 point

What is the correct output of the following program?

#include
void fun(int*, int*);
int main()
{
int i=5, j=2;
fun(&i, &j);
printf("%d, %d", i, j);
return 0;
}
void fun(int *i, int *j)
{
*i = *i**i;
*j = *j**j;
}

2, 5

5, 2

10, 4

25, 4

11.

1 point

If a variable is a pointer to a structure, then which of the following operator is used to access data members of the structure through the pointer variable?

.

->

*

&

12.

1 point

Stack is a data structure in which the elements can be accessed in LIFO manner. Consider an empty stack of integers. Let the numbers 1,2,3,4,5,6 be pushed on to this stack only in the order they appear from left to right. Then which of the following permutations are possible using Push and Pop operations on the stack.

A. 3,2,5,6,4,1

B. 1,5,4,6,2,3

C. 1,2,3,6,5,4

Both A and C

13.

1 point

Which of the following statement is correct?

A constructor is called at the time of use of an object.

A constructor is called at the time of declaration of an object.

A constructor is called at the time of use of a class.

A constructor is called at the time of declaration of a class.

14.

1 point

In C, if you pass an array as an argument to a function, what actually gets passed?

Value of elements in array

Address of the last element of array

First element of the array

Base address of the array

15.

1 point

If the MAX_SIZE is the size of the array used in the implementation of circular queue, array index start with 0. 'front' point to the first element in the queue, and 'rear' point to the last element in the queue. Which of the following condition specify that circular queue is FULL?

Rear=(front+1)%MAX_SIZE

Front=rear= -1

Front=(rear+1)%MAX_SIZE

Rear=front+1

16.

1 point

Which of the following is/are not user defined data type(s)?

I. struct book{
char name[10];
float price;
int pages;
};

II. long int l=2.35;

III. enum day {sun,mon,tue,wed};

I

II

III

Both I & II

17.

1 point

Which of the following function is correct that finds the length of a string?

int xstrlen(char *s){ int length=0; while(*s!='\0') length++; return (length); }

int xstrlen(char *s){ int length=0; while(*s!='\0') s++; return (length); }

int xstrlen(char *s){ int length=0; while(*s!='\0') { length++; s++; } return (length); }

int xstrlen(char s){ int length=0; while(*s!='\0') length++; s++; return (length); }

18.

1 point

Which of the following is not a type of inheritance?

Distributive

Hierarchical

Multiple

Multilevel

19.

1 point

Consider the ASCII character encoding scheme which uses 1 Byte for storing characters in form of the ASCII values. What are the maximum possible numbers of ASCII values that can be stored using this 1 Byte encoding scheme.

20.

1 point

What is the correct output for the following program?

#include
int main() {
char str[] = "peace";
char *s = str;
printf("%s\n", s++ +3);
return 0;
}

ce

ace

eace

e

IEOR Programming Test - I