Download JNTUA MCA 2018 July Reg-Supply 1st Sem 17F00102 Introduction to Problem Solving and Programming Question Paper

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Code: 17F00102

MCA I Semester Supplementary Examinations June/July 2018

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INTRODUCTION TO PROBLEM SOLVING & PROGRAMMING

(For students admitted in 2017 only)

Time: 3 hours Max. Marks: 60

Answer all the questions

1. Explain various steps involved in a systematic implementation of algorithms in top-down approach.

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   OR

   Write a Pascal implementation of summing up a set of n numbers and return the resultant sum.

2. Write the Pascal implementation for generating pseudo-random numbers.

   OR

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   Develop an algorithm to raise a number ‘n’ to a large power ‘p’.

3. What do you mean by typecasting? Explain the difference between while and do-while loop with an example.

   OR

   Explain different relational operators. Define a variable and list out the rules for formulating variable names.

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4. What is recursion? Explain the declaration of a function with an example.

   OR

   Define and declare a union. List out the differences between structures and unions.

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5. What is the difference between malloc and calloc functions? Explain the concepts of arrays of pointers with an example.

   OR

   Define a file. Write a program to demonstrate the opening and closing of a file.

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