Student Grading System

A terminal-based management system implemented in C for tracking and analyzing student performance.

Project Overview

This Student Grading System allows teachers and administrators to manage student records, compute averages and letter grades, and generate statistical reports. The system demonstrates proficiency in C programming fundamentals including functions, conditional logic, loops, arrays, and text file handling.

Prerequisites

• GCC compiler (MinGW for Windows, or gcc on Linux/macOS)
• Terminal/Command Prompt access
• No additional libraries required - uses only standard C libraries

Installation and Compilation

Windows (PowerShell or Command Prompt)

gcc -o student_grading_system student_grading_system.c

Linux/macOS (Terminal)

gcc -o student_grading_system student_grading_system.c

Running the Program

Windows

.\student_grading_system

Linux/macOS

./student_grading_system

Key Features

1. Student Management

   • Add new student records with ID, name, and subject marks
   • List all active students with formatted display
   • Search for specific students by ID
   • Update existing student information
   • Delete students (logical deletion)

2. Grade Processing

   • Calculate student average from subject marks
   • Assign letter grades based on average (A ≥85, B ≥70, C ≥55, D ≥40, F <40)

3. Reporting

   • Generate class summary reports
   • Display class average
   • Show highest and lowest performing students
   • Present grade distribution statistics

4. Data Persistence

   • Load student records from file on startup
   • Save student data to file on exit
   • Generate optional class reports to separate file

File Structure

• student_grading_system.c - Main source code file
• students.txt - Data storage file (pipe-delimited format)
• class_report.txt - Generated report file (when requested)

Data Format

Student records are stored in the following format:

<id>|<name>|<marks>|<average>|<grade>|<active>

Example:

2021001|Alice Perera|85,78,90|84.33|A|1