CS3251 – PROGRAMMING IN C IMPORTANT QUESTIONS

CS3251 – SYLLABUS

UNIT I BASICS OF C PROGRAMMING
Introduction to programming paradigms – Applications of C Language – Structure of C program – C programming: Data Types – Constants – Enumeration Constants – Keywords – Operators: Precedence and Associativity – Expressions – Input/Output statements, Assignment statements – Decision making statements – Switch statement – Looping statements – Preprocessor directives – Compilation process

UNIT II ARRAYS AND STRINGS
Introduction to Arrays: Declaration, Initialization – One dimensional array –Two dimensional arrays – String operations: length, compare, concatenate, copy – Selection sort, linear and binary search.

UNIT III FUNCTIONS AND POINTERS
Modular programming – Function prototype, function definition, function call, Built-in functions (string functions, math functions) – Recursion, Binary Search using recursive functions –Pointers – Pointer operators – Pointer arithmetic – Arrays and pointers – Array of pointers – Parameter passing: Pass by value, Pass by reference.

UNIT IV STRUCTURES AND UNION
Structure – Nested structures – Pointer and Structures – Array of structures – Self referential structures – Dynamic memory allocation – Singly linked list – typedef – Union – Storage classes and Visibility.

UNIT V FILE PROCESSING
Files – Types of file processing: Sequential access, Random access – Sequential access file – Random access file – Command line arguments.

UNIT 1

Part – A

❖ External storage class
❖ Differentiate Formatted & UnFormatted Input /output statements & give
examples
❖ Application of C language
❖ Various types of C operators
❖ Differentiate Break & Continue Statement in C
❖ Assignment statements
❖ Preprocessor directives & its uses / preprocessor work

Part -B , C

❖ Various Decision making statements & (purpose & various Looping) / branching
/ Switch statements
❖ Various Types of Operators used in C
❖ Structure in c
❖ Data Types in C
❖ Storage class & various storage classes & its examples
PROGRAMS:
❖ Write a C program Find the sum of 10 non-negative numbers entered by user / sum of
digit
❖ Write a C program to find the largest among 3 numbers entered by the user
❖ Write a C program to check the integer is palindrome or not

UNIT 2

Part – A

❖ Selection sorting
❖ What is Array & syntax for one / two dimensional array
❖ Design C program / function for compare any two string
❖ Two Library function used for string handling
❖ Given an array int a[10]={101,102,103,104,105,106,107,108,109,110}.Show the
memory representation & calculate its length
❖ Linear & binary search
❖ compilation process

Part – B, C

❖ Array (1 & 2 dimensional)
❖ Array : need of array, declaration of array, accessing of array element
❖ Explain in Algorithm & Write a C program to re order a one dimensional array of
numbers in descending order
❖ String Operations / String Types of String functions & its purpose
❖ Binary Search Procedure & Write Program for Binary Search

PROGRAMS:

❖ Write a C program to find the transpose of a matrix
❖ Write a C program to reverse a string using recursion
❖ Write a C program to find the number of Vowels, Consonants, Digits & white space
in string
❖ Write a C program to re order a one dimensional array of numbers in descending
order

UNIT 3

Part – A

❖ Steps in writing a Function in program / Need for Function / Function
Declaration
❖ Pointers / When Null pointer is used
❖ Advantages of Recursion
❖ Is it better to use a macro or a function

Part – B , C

❖ Function Declaration & Types of Function
❖ Binary Search using Recursive Function
❖ Explain / Difference between pass by value & pass by reference & Write
program for swapping two numbers using pass by reference
❖ Pass reference & Explain Swapping 2 value using pass by reference in C
❖ Recursive Function & Write C program to find Factorial of n using recursion

PROGRAMS:

❖ Write C program to reverse a string using recursion
❖ Write C program to find Factorial of n using recursion

UNIT 4

Part – A

❖ Linked list => programs
❖ Meaning of the root word struct
❖ Use of typedef
❖ Nested structure
❖ Compare & Contrast a structure with an array
❖ Classes

Part – B , C

❖ Dynamic memory allocation & various C function that used for same with
examples
❖ Pointer & Structures & its types
❖ Self referential structures & its example
❖ Structure in C & Pointer

PROGRAMS:

❖ Write a C program using structures to prepare the student mark statement. The
number of records is created based on the user input
❖ Write a C program using structures to prepare the employee pay roll of a company.
The number of records is created based on the user input

UNIT 5

Part – A

❖ Why Files are needed
❖ Uses of command line Argument / What does argv & argc indicate in command
line Arguments
❖ Two main ways a file can be organized
❖ File Operations in C paradigm
❖ How can you restore are directed standard stream

Part – B , C

❖ Types of file processing with examples
❖ Various operations on file with examples
❖ Random access in files along with function used in
same C with examples
PROGRAMS:
❖ Write C coding to find the average of number stored in sequential access file

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