Built with C

c-random

This repo contains all codes in C that are not a part of competitive programming like CSES that I do for better understanding.

Overview

c-random is a collection of C programs written for learning, experimentation, and better understanding of programming concepts. Unlike competitive programming solutions, these programs focus on exploring C language fundamentals, algorithms, and problem-solving techniques in a practice-oriented environment.

How It Works

The repository contains individual C files, each demonstrating a specific concept or solving a particular problem:

1toN.c: Program to print numbers from 1 to N

// Demonstrates basic loops and iteration

Grades.c: Grade calculation or classification program

// Implements conditional logic for grade assignment

frequency.c: Character or element frequency counter

// Counts occurrences of elements in arrays or strings

primeValidator.c: Prime number validation program

// Checks if a given number is prime

rev.C: String or number reversal program

// Reverses the order of characters or digits

strstr.c: String search implementation

// Finds substring within a larger string

Core Functionality

1. Learning Exercises: Programs written to understand C concepts
2. Algorithm Practice: Implementations of common algorithms
3. Problem Solving: Solutions to programming challenges outside competitive platforms
4. Concept Exploration: Experiments with C language features and libraries

Topics Covered

The code samples demonstrate:

1. Loops and iteration (for, while, do-while)
2. Conditional statements (if-else, switch)
3. Arrays and strings manipulation
4. Functions and modular programming
5. Input/output operations
6. Mathematical computations
7. String processing algorithms

Key Concepts Demonstrated

• C Fundamentals: Variables, data types, operators, and control structures
• Memory Management: Pointers, arrays, and dynamic allocation
• Algorithm Design: Efficient solutions to common problems
• Standard Library: Using stdio.h, string.h, and other standard headers
• Problem Decomposition: Breaking problems into manageable functions

Installation

1. Clone the repository:

git clone https://github.com/achille010/c-random.git
cd c-random

2. Compile a program:

gcc -o 1toN 1toN.c

3. Run the executable:

./1toN

4. Or compile with warnings enabled:

gcc -Wall -o primeValidator primeValidator.c

Usage Examples

1 to N Program

# Compile and run
gcc -o 1toN 1toN.c
./1toN
# Input: 10
# Output: 1 2 3 4 5 6 7 8 9 10

Prime Validator

# Compile and run
gcc -o primeValidator primeValidator.c
./primeValidator
# Input: 17
# Output: 17 is a prime number

String Reversal

# Compile and run
gcc -o rev rev.C
./rev
# Input: hello
# Output: olleh

Limitations

• Programs are for learning and practice purposes
• Not optimized for production use
• May lack comprehensive error handling
• Compiled executables (.exe) are included (typically not best practice for repos)
• Code focuses on concept demonstration over code optimization

This is intentionally a collection of practice and learning exercises in C.

Requirements

• C compiler (gcc, clang, or MSVC)
• Basic understanding of C programming
• Terminal or command prompt

Contributing

Contributions are welcome! Feel free to fork this repository and submit pull requests for improvements.

License

MIT License - Read details from the LICENSE file

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Built as a collection of C practice programs for learning and understanding