B.Tech I Year II Semester (R20) Supplementary Examinations August-2023

PROGRAMMING FOR PROBLEM SOLVING USING C (20A54202)

(Common to ECE, EEE & CSE)

Time: 3 hours

Max. Marks: 70

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Note: 1. Question Paper consists of two parts i.e., Part-A and Part-B.

2. Part-A contains all short answer questions from all the units.

3. Part-B contains all five questions as described in the syllabus, each question may have a, b, c sub-parts.

PART-A

5 * 2 = 10 Marks

1. 1. Define algorithm and flowchart.

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   2. What are the different data types available in C?
   3. What is meant by function prototype?
   4. Define pointer. How can we declare a pointer?
   5. What are the different file operations?

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PART-B

5 * 12 = 60 Marks

1. a) Explain about the structure of C program with an example.

   OR

   b) Explain about different operators available in C.

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2. a) Write a C program to check whether the given number is Armstrong or not.

   OR

   b) Write a C program to generate prime numbers between 1 to n.

3. a) Explain about call by value and call by reference with an example.

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   OR

   b) Write a C program to find the factorial of a given number using recursion.

4. a) Explain the concept of structures. Write a C program to read and display the information of student details using structures.

   OR

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   b) Explain dynamic memory allocation in detail.

5. a) Write a C program to copy the contents of one file to another.

   OR

   b) Explain different file handling functions in detail.

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