(AUTONOMOUS)
B. Tech I Semester Regular/Supplementary Examinations, January 2018
(Regulations: VCE-R15)
COMPUTER PROGRAMMING
(Common for All Branches)
Date: 03 January, 2018
Time: 3 hours
Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
Unit I
1.

Why C language supports many data types? What is the effect of mixing types in Explain briefly the numeric types supported by C.
9M

Write a C Program to find largest of three integers using Conditional Operator.
Note: The program must find the largest of the three integers in a single C statement.
6M
2.

Write a C Program to find the roots of a quadratic equation.
7M

Consider the following code snippets:
i.
#include<stdio.h>
int main(void)
int x 19;
printf 1 x
printf 1 x
return

ii.
#include<stdio.h>
int main()
int
a
printf("%d",
return

iii.
#include <stdio.h>
int main()

int i
printf("%d",
return

iv.
#include <stdio.h>
int main(void)

int i
printf("%d",
return

Do the codes execute? If yes, write the output and one line explanation for that output. If no, identify and fix the bug.
8M
Unit II
3.

Differentiate while and do-while loop giving suitable examples.
5M

Upper triangular matrix can be extracted from a square matrix by extracting the elements of principle diagonal and the elements that lie above it. Write a C program to extract the upper triangular matrix from a square matrix.
10M
Cont…2

4.

Develop a C program that checks whether two matrices can be multiplied or not. If yes, multiply them and display the resultant matrix in the matrix format.
8M

Develop a C program to check whether the string given by the user is a palindrome or not without using string library functions.
7M
Unit III
5.

What is the relationship between array and pointers? Illustrate with suitable examples.
7M

Define recursion. Making use of recursion to:
i. Find the factorial of a given number
ii. Generate the Fibonacci numbers up to N
8M
6.

Why are pointers passed to functions as arguments? Like other variables, pointer variables can be used in expressions Comment.
7M

Write a C program to find the sum of the elements in one dimension array using pointers.
8M
Unit IV
7.

Discuss the uses of typedef and Enumerations with suitable example.
5M

Define a structure by name 'complex' consisting of real and imaginary parts of a complex number. Write a C program to add and multiply two such complex numbers.
10M
8.

Write a short note on the following:
i. Structure with in a structure
ii. Array of structures
iii. Self-referential structures
8M

Write a C program to demonstrate passing structures through pointers.
7M
Unit V
9.

What are the various file access modes? Demonstrate various file accessing modes.
7M

Develop a program that counts the number of characters present in a file.
8M
10.

Explain the general format of rewind() and fseek() functions.
5M

Write a program in C to append the contents of one file to the end of another file.
10M