The document contains solved question papers from June 2015 and December 2015 for Programming in C & Data Structures examinations. It includes questions ranging from basic C programming concepts like data types, operators, decision making and looping statements to more advanced topics such as arrays, strings, structures, files and pointers. For each question, the relevant concept is explained and examples are provided. Solutions for some programming problems involving simple calculations, palindrome checks and file handling are also presented.

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4. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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1 a. What are data types? Mention the different data types supported by C language,
giving an example to each. (5 Marks)
Ans:
1 b. Write a C program which takes as input p, t, r. Compute the simple interest and
display the result. (5 Marks)
Ans:

5. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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1 c. What is an operator? List and explain various types of operators. (10 Marks)
Ans:

6. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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7. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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2 a. What is a token? What are the different types of tokens available in C language?
Explain. (08 Marks)
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8. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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2 b. Write C expressions corresponding to the following (Assume all quantities are of
same type) (06 Marks)
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2 c. What is the value of ‘x’ in the following code segments? Justify your answers:
(06 Marks)
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9. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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3 a. What are the different types of conditional decision making statements? Explain
each with example. (10 Marks)
Ans:

10. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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11. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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12. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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3 b. Write a C program to simulate simple calculator that performs arithmetic
operations using switch statements. Error message should be displayed, if any
attempt is to made to divide by zero. (10 Marks)
Ans:

13. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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4 a. Explain with example formatted input output statements in C. (06 Marks)
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14. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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4 b. List four differences between while loop and do-while loop along with syntax
and example. (06 Marks)
Ans:

15. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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4 c. Design and develop a C program to reverse a given four digit integer number
and check whether it is a palindrome or not. (08 Marks)
Ans:

16. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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5 a. What is an array? Explain different methods of initialization of single
dimensional arrays. (06 Marks)
Ans:

17. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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18. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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5 b. Write a C program to read N integers into an array A and to
i) find the sum of odd numbers
ii) find the sum of even numbers
iii) find the average of all numbers
Output the results computed with appropriate headings. (06 Marks)
Ans:

19. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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5 c. How string is declared and initialized? Explain any FOUR string manipulation
functions with examples. (08 Marks)
Ans:

20. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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21. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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6 a. Explain function call, function definition and function prototype with examples
to each. (06 Marks)
Ans:

22. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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6 b. What are actual parameters and formal parameters? Illustrate with example.
(06 Marks)
Ans:
6 c. What is recursion? Write a C program to compute the factorial of a given number
‘n’ using recursion. (08 Marks)
Ans:

23. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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7 a. How structure is different from an array? Explain declaration of a structure with
an example. (06 Marks)
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24. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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7 b. Explain with an example, how to create a structure using ‘typedef’. (04 Marks)
Ans:

25. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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7 c. Write a C program to input the following details of ‘N’ students using structure:
Roll No: integer, name: string, marks: float, grade: char
Print the names of the students with marks >= 60.0%. (10 Marks)
Ans:

26. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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8 a. Explain following file operations along with syntax and examples:
i)fopen() ii)fclose() iii)fscanf() iv) fprintf() v)fgets(). (10 Marks)
Ans:

27. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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8 b. Write a C program to read the contents from the file called abc: text, count the
number of characters, number of lines and number of white spaces and output the
same. (10 Marks)
Ans:

28. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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8 a. Define pointer variable. Explain with an example, the declaration and
initialization of pointer variable. (06 Marks)
Ans:

29. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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8 b. Explain following C functions along with syntax and example to each.
i) malloc() ii) calloc() iii) realloc iv) free() (08 Marks)
Ans:

30. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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8 c. Develop a C program to read two numbers and function to swap these numbers
using pointers. (06 Marks)
Ans:

31. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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10 . Write short notes on following:
a. Preprocessor directives
b. Primitive and non primitive data types
c. Stack operations
d. Types of queues. (20 Marks)
Ans:
a)

32. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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Ans:
b)
Ans:
c)

33. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER JUNE- 2015
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Ans:
d)

34. For Solved Question Papers of UGC-NET/GATE/SET/PGCET in Computer Science, visit http://victory4sure.weebly.com/

35. For Solved Question Papers of UGC-NET/GATE/SET/PGCET in Computer Science, visit http://victory4sure.weebly.com/

36. For Solved Question Papers of UGC-NET/GATE/SET/PGCET in Computer Science, visit http://victory4sure.weebly.com/

37. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
1
1 a. Explain the structure of ‘C’ program with example. (5 Marks)
Ans:

38. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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1 b. Explain scanf() and printf() function in ‘C’ language with syntax and examples.
(5 Marks)
Ans: For answer, refer Solved Paper June-2015 Q.No.4a.
1 c. Write a ‘C’ program to find area of circle. (5 Marks)
Ans:
2 a. What is an algorithm? Write an algorithm to find largest of 3 numbers. (5 Marks)
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39. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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2 b. Explain the following operators in ‘C’ language.
i) Relational ii) Conditional iii) Logical (5 Marks)
Ans:

40. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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2 c. What is an identifier? Give any 5 rules that are to be followed while declaring a
variable. (4 Marks)
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41. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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3 a. Explain the ELSE IF ladder with syntax and example. (8 Marks)
Ans:

42. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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3 b. List the types of loops. Explain the working of any one type of loop with syntax
and example. (8 Marks)
Ans:

43. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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3 b. Write a program to read a year as an input and find whether it is a LEAP YEAR or
not (8 Marks)
Ans:

44. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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4 a. Explain SWITCH statement, with syntax and example. (8 Marks)
Ans:
4 b. Differentiate between WHILE and DO-WHILE loops. (6 Marks)
Ans: For answer, refer Solved Paper June-2015 Q.No.4b.
4 c. Write a program to find reverse of a number and check whether it is a
PALINDROME or not (6 Marks)
Ans: For answer, refer Solved Paper June-2015 Q.No.4c.

45. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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5 a. What is an ARRAY? Explain the different ways of initializing an array with
examples. (7 Marks)
Ans: For answer, refer Solved Paper June-2015 Q.No.5a.
5 b. What are the advantages of using User defined functions. (6 Marks)
Ans:

46. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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5 c. Write a program to read a sentence and print the frequencies of each VOWEL
and total count of CONSONANTS. (7 Marks)
Ans:

47. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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6 a. Explain the different types of arrays, with syntax and examples. (7 Marks)
Ans:

48. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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6 b. Explain any 4 string manipulating functions with examples. (8 Marks)
Ans:

49. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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50. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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6 c. Define the following:
i) Actual parameter
ii) Formal parameter
iii) Global variable (external variable)
iv) Local variable (automatic variable) (5 Marks)
Ans:
7 a. Define a STRUCTURE. Explain structure with syntax and example. (5 Marks)
Ans: For answer, refer Solved Paper June-2015 Q.No.7a.

51. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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7 b. What is a FILE? Explain any 2 FILE functions, with example. (5 Marks)
Ans:
7 c. Write a program to maintain a record 0f ‘n’ student details using an array of
structures with four fields (Roll number, Name, Marks, and Grade). Each field is of a
appropriate data type. Print the marks of the students based on the student name as
input (10 Marks)
Ans: Ans: For answer, refer Solved Paper June-2015 Q.No.7c.

52. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
16
8 a. Differntiate between STRUCTURES and UNIONS. (5 Marks)
Ans:
8 b. Explain the various MODES in which a FILE can be created successfully. (5
Marks)
Ans:

53. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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8 c. Given 2 university information files ‘student.txt’ and ‘usn.txt’ that contains
students Name and USN respectively. Write a program to create a new file called
‘output.txt’ and copy and contents of files ‘studentname.txt’ and ‘usn.txt’ into output
file in the sequence shown below. (10 Marks)
Ans:

54. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
18
9 a. Define a POINTER. Explain how pointer variable is declared and initialized. (6
Marks)
Ans: For answer, refer Solved Paper June-2015 Q.No.9a.
9 b. What are primitive and non-primitive data types? Give examples. (6 Marks)
Ans: For answer, refer Solved Paper June-2015 Q.No.10b.
9 c. Write a program using pointers to compute sum, mean and standard deviation
of all elements stored in an array of ‘n’ real numbers. (8 Marks)
Ans:

55. PROGRAMMING IN C & DATA STRUCTURES SOLVED PAPER DEC- 2015
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10 a. Explain any 2 pre-processor directives in ‘C’ language. (5 Marks)
Ans: For answer, refer Solved Paper June-2015 Q.No.10a.
10 b. What is a STACK? Explain its applications. (5 Marks)
Ans:
10 c. What is a QUEUE? Explain with example. (5 Marks)
Ans:
10 d. Write a program to swap 2 numbers using call-by-refernce method. (5 Marks)
Ans: For answer, refer Solved Paper June-2015 Q.No.9c.