c programming previous year question papers

Key Informations

This tutorial covers various concepts and questions related to C programming from previous years' exams.

Examples

Here are some examples to illustrate different programming concepts:

1. Calculating factorial of a number
2. Reversing a string
3. Finding prime numbers
4. Sum of elements in an array
5. Sorting an array

Exercises

Here are some exercises with solutions to practice previous year's questions in C programming:

1. Write a program to check if a number is prime or not.
2. Implement a function to reverse a given string.
3. Create a C program to calculate the factorial of a number using recursion.
4. Write a program to find the largest element in an array.
5. Develop a C program to generate the Fibonacci series up to n terms.

1. Program to check if a number is prime or not:
   
2. Function to reverse a given string:
   
3. Program to calculate the factorial of a number using recursion:
   
4. Program to find the largest element in an array:
   
5. Program to generate the Fibonacci series up to n terms:
   

Case Studies

Here are some real-world scenarios where C programming is applied:

1. Implementing a banking system
2. Developing a student management system
3. Creating a simple calculator application
4. Building a file handling system
5. Designing a chat application

Subcategories

List of subcategories in C programming:

1. Data types and variables
2. Control statements
3. Functions and recursion
4. Arrays and strings
5. Pointers and structures

Notes

Important notes to remember in C programming:

• Always initialize variables before use
• Handle memory allocation and deallocation carefully
• Understand the concept of pointers thoroughly
• Test your code with boundary cases
• Practice coding regularly to improve skills

Step-by-Step Guide

A detailed guide on how to approach C programming:

1. Understand the problem statement
2. Break down the problem into smaller tasks
3. Design the algorithm to solve each task
4. Write code for each task and test it
5. Optimize the code for better performance

Cases

Real-life cases where C programming is applied:

• Development of operating systems
• Embedded system programming
• Network programming
• Game development
• Software development

Questions & Answers

Frequently asked questions in C programming:

1. What is the difference between ++i and i++?
2. How to pass arguments by reference in C?
3. What is the purpose of the 'volatile' keyword in C?
4. Explain the difference between 'calloc' and 'malloc'.
5. How do you use 'strcpy' and 'strncpy' functions?

1. Answer 1: The '++i' increments the value of 'i' and then returns the updated value, while 'i++' returns the value of 'i' and then increments it.
2. Answer 2: To pass arguments by reference, use pointers or pass the address of variables.
3. Answer 3: The 'volatile' keyword is used to indicate that a variable may be changed by an external entity, so the compiler should not optimize its access.
4. Answer 4: 'calloc' allocates memory for an array and initializes it to zero, while 'malloc' allocates memory without initialization.
5. Answer 5: 'strcpy' is used to copy a string, while 'strncpy' allows you to specify the number of characters to copy.

Multiple Choice Questions

Test your knowledge with these multiple-choice questions:

1. What is the output of the following code?
   #include <stdio.h>
int main() {
 int x = 10;
 int y = ++x;
 printf("%d", y);
 return 0;
}
   A) 9
   B) 10
   C) 11
   D) Compilation error
   Correct Answer: C) 11
2. What is the purpose of the 'break' statement in a switch case?
3. Which of the following is a valid C identifier?
4. What is the use of the 'sizeof' operator?
5. What is the default return type of a function in C?

1. Answer 2: The 'break' statement is used to exit from a switch case and transfer control to the statement after the switch.
2. Answer 3: An identifier in C can consist of letters, digits, and underscores, and it must begin with a letter or underscore.
3. Answer 4: The 'sizeof' operator is used to determine the size of a variable or data type in bytes.
4. Answer 5: The default return type of a function in C is 'int'.

About the Topic

C programming is a widely-used programming language known for its efficiency and versatility. It is commonly used for system programming, embedded systems, and application development.

Related Questions

Here are some related questions with answers:

1. What are the different types of storage classes in C?
2. Explain the concept of pointers in C.
3. How do you handle errors in C programming?
4. What is the purpose of the 'typedef' keyword?
5. Discuss the difference between 'scanf' and 'fgets' functions.

1. Answer 1: The different types of storage classes in C are auto, register, static, and extern.
2. Answer 2: Pointers in C are variables that store memory addresses. They are used for dynamic memory allocation, accessing array elements, and passing arguments by reference.
3. Answer 3: Errors in C programming can be handled using error codes, exception handling, or assertions.
4. Answer 4: The 'typedef' keyword is used to create custom data types in C.
5. Answer 5: 'scanf' is used to read input from the standard input stream, while 'fgets' is used to read input from a file or stream.

Related Topic

Explore more about C programming and its applications in various fields:

• Data structures and algorithms
• Operating systems
• Embedded systems
• Network programming
• Game development

Elements to Remember

Here are some key elements to remember in C programming:

• Use comments to improve code readability
• Avoid global variables whenever possible
• Practice modular programming for better code organization
• Understand the importance of data types and memory management
• Regularly update your knowledge with new features and techniques