JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech I Year PROGRAMMING FOR PROBLEM SOLVING Previous Question Paper (December – 2019/January - 2020 - R18)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Name any five features of C programming Language.
Answer
Five features of C are: 1. Structured programming language, 2. Rich set of built-in operators, 3. Efficient and fast execution, 4. Portable, and 5. Supports dynamic memory allocation.
How to declare, define and initialize a pointer?
Answer
Declaration: int *ptr;. Definition (assigning address): ptr = &var;. Initialization (combined): int *ptr = &var;.
Define preprocessor directive.
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What is meant by function prototype?
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What are the advantages of bubble sort?
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Write any two bitwise operators with examples.
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What are the applications of an array?
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Differentiate between text files and binary files.
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What are the limitations of using recursive functions?
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How does linear search differ from binary search?
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Part B
What is the importance of precedence and associativity in evaluating an expression?
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How is ‘switch’ used as a multi-way selection statement? Explain with suitable example.
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State the purpose of unary and conditional operators.
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What is the significant of ‘break’ and ‘continue’ statements?
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Discuss about command-line arguments.
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Using two dimensional array, write a C program to find the inverse of a 2×2 matrix.
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Demonstrate the usage of self referential structures using a program.
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List and explain various basic string functions available in C.
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Demonstrate the following functions with a correct syntax and code:
a) ftell( ) b) fseek( ) c) rewind( )
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Write a C program that prints a specified number of records from the beginning of a given file.
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Write a C program to illustrate define, undef directives.
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Discuss various methods of passing parameters to functions with suitable C code.
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How to handle memory leaks and dangling pointers?
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Write a C program that uses calloc( ) to create a memory block for storing n integers and print the stored contents.
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Write an algorithm for finding the maximum number of an array elements.
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Explain how linear search works and mention its pros and cons.
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Write a C program to demonstrate how insertion sort works.
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Write a C program to find whether a given number is prime or not.
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