M.C.A. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2017.
First Semester
Paper IV PROGRAMMING METHODOLOGY IN C
2 90214-A
Time 3 Hours Max. Marks 70
SECTION — A
Answer any FIVE of the following. 6 30 Marks)
Each question carries 6 marks.
1. What is an algorithm? Write an algorithm to find a largest digit in a given number
and print it in word with appropriate message. (e.g. n 5273 'SEVEN is largest")
2. Describe various ways to determine algorithm efficiency.
3. What is storage type? Describe different types of storage classes.
4. Differentiate structures and unions.
5. Write a C language program which will read string and count the number of
characters and words in it.
6. What is an array? How to declare and access two dimensional array elements.
7. What is meant by dynamic memory allocation? Give different dynamic memory
allocation functions in C with syntax.
8. Write a C program to implement searching an element from the list of elements
using linear search.
SECTION — B
Answer any ONE questions from each Unit. 10 40 Marks)
9. What is recursion? Illustrate recursion with suitable example.
Or
10. Discuss requirements for the solving problems by computer.

11. Explain about different classifications of operators in C and also give the rules to
declare identifiers in C.
Or
12. Explain different modes of opening the file.
Write a C language program to display the content of file using Command
line argument.
13. Write a C Program to read character from keyboard and display message whether
character is alphabet, digit or special symbol.
Or
14. Write a C Program to find sum of 1/12 1/22 1/32 .... 1/n2 using while loop.
15. Illustrate Call — by — value and Call — by — reference with suitable Example.
Or
16. Write a C program to implement ascending list of elements by using Bubble sort.
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