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

Course Title: Programming for Problem Solving

(Common to CSE, ECE, EEE, MECH, CIVIL & AI&DS)

Time: 3 hours Max. Marks: 70

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Note: 1. Question Paper consists of two parts viz. Part-A and Part-B
2. Part-A is compulsory
3. Answer any three questions from Part-B

PART-A (14 Marks)

1. a) Define algorithm and flowchart. (2M)

   b) What is type conversion? Explain with example. (2M)

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   c) Differentiate between While and Do-While loop. (2M)

   d) Define array. List the different types of arrays. (2M)

   e) What is recursion? Give an example. (2M)

   f) Define structure. How to declare and initialize structure? (3M)

   g) What are the file opening modes? (1M)

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PART-B (3 x 12 = 36 Marks)

2. a) Explain different types of operators available in 'C'. (6M)

   b) Draw a flowchart and write an algorithm to find the largest of three numbers. (6M)

3. a) Write a 'C' program to check whether a given number is prime or not. (6M)

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   b) Explain about different conditional statements in 'C' with examples. (6M)

4. a) Write a 'C' program to find the sum of diagonal elements of a matrix. (6M)

   b) Explain the concept of call by value and call by reference with suitable examples. (6M)

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5. a) Write a 'C' program to find the factorial of a given number using recursion. (6M)

   b) Explain any six string handling functions with examples. (6M)

6. a) Explain the concept of structures with an example. (6M)

   b) Write a 'C' program to copy the contents of one file to another. (6M)

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