C Programming Practice Collection

A comprehensive collection of C programming exercises and projects covering fundamental concepts like arrays, patterns, calculations, and user input handling.

Repository Contents

Array Operations

• 2D_Array_1.c - 2D array manipulation and sorting
• Assignment-3.c - Complex 2D array operations with pointers

Pattern Programs

• Pattern_1.c - Star pattern triangle
• Pattern_1a.c - Number pattern with odd numbers
• Half_Diamond.c - Half diamond star pattern
• full_daimond.c - Complete diamond pattern
• right_half_diamond.c - Right-aligned diamond pattern

Mathematical Operations

• arith operations.c - Basic arithmetic calculator (addition, subtraction, multiplication, division)
• calculator c.c - Interactive calculator program
• Prime_Factors.c - Prime factorization of numbers
• Sum of Integers.c - Sum calculation for positive/negative integers

User Classification Programs

• Age.c - Age-based classification (baby, child, adult)
• grading.c - Grade classification based on percentage
• height.c - Height-based classification (short, average, tall, very tall)
• Human_Height.c - Statistical analysis of multiple height inputs

Utility Programs

• 35_marker.c - Mathematical expression evaluation
• 50_Marker.c - Number sequence operations
• Functions_1.c - Function demonstration program
• test.c - Simple "Hello, World!" program

Getting Started

Prerequisites

• GCC compiler installed on your system
• Basic understanding of C programming

Compilation and Execution

Option 1: Run All Programs (Automated)

# Make the script executable
chmod +x run_all.sh

# Run all programs
./run_all.sh

Option 2: Compile Individual Programs

# Compile a specific program
gcc filename.c -o output_name

# Run the compiled program
./output_name

Examples:

# Compile and run the calculator
gcc "arith operations.c" -o calculator
./calculator

# Compile and run pattern programs
gcc Pattern_1.c -o pattern
./pattern

# Compile and run age classifier
gcc Age.c -o age_classifier
./age_classifier

Features

• Cross-platform compatibility - All programs work on Linux, macOS, and Windows
• Clean code structure - Following C programming best practices
• Interactive programs - Several programs accept user input
• Educational value - Perfect for learning C programming fundamentals

Program Categories

Category	Programs	Description
Patterns	Pattern_1.c, Pattern_1a.c, Half_Diamond.c, full_daimond.c, right_half_diamond.c	Various star and number patterns
Arrays	2D_Array_1.c, Assignment-3.c	2D array operations and pointer manipulation
Math	arith operations.c, calculator c.c, Prime_Factors.c, Sum of Integers.c	Mathematical calculations and algorithms
Classification	Age.c, grading.c, height.c, Human_Height.c	User input classification systems
Utilities	35_marker.c, 50_Marker.c, Functions_1.c, test.c	Helper and demonstration programs

Sample Outputs

Pattern Examples:

Diamond Pattern:
   *
  ***
 *****
*******
 *****
  ***
   *

Number Pattern:
1  
1  3  
1  3  5  
1  3  5  7  

Calculator Example:

Please Enter Two Numbers: 10 5

Sum =  15.00
Difference =   5.00
Product =  50.00
Quotient =   2.00

Grade Classification:

PLEASE ENTER PERCENTAGE: 85

B+

Code Quality

• All programs compile without warnings
• Memory-safe operations
• Proper input validation where applicable
• Clean, readable code structure
• Standard C library usage only

Contributing

Feel free to:

• Add new programs
• Improve existing code
• Fix bugs or issues
• Enhance documentation

License

This project is open source and available under the MIT License.

Development Environment

• Language: C (C99 standard)
• Compiler: GCC
• Platform: Cross-platform (Linux, Windows, macOS)
• Tools: Git for version control

Repository Statistics

• Total Programs: 19
• Lines of Code: ~500+
• Categories: 5
• All Programs: Tested and Working

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*Happy Coding! *