CGPA Calculator System (C++)

📌 Project Overview

This is a console-based CGPA Calculator developed in C++ as part of an internship task.
The system calculates Semester GPA and Final CGPA based on user input of grades and credit hours, and also generates a detailed report file.

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🚀 Features

• Supports multiple semesters
• Calculates Semester GPA
• Calculates Final CGPA
• Grade system support (A, A-, B+, B, B-, C+, C, D, F)
• Converts grades into grade points automatically
• Input validation for:
  • Invalid grades
  • Invalid credit hours
  • Invalid semester/course counts
• Generates a complete CGPA report file
• Clean formatted console output
• Beginner-friendly C++ implementation

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📊 Grade Point System

Grade	Grade Points
A	4.0
A-	3.7
B+	3.3
B	3.0
B-	2.7
C+	2.3
C	2.0
D	1.0
F	0.0

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🧠 How It Works

1. User enters number of semesters
2. For each semester:
   • Enter number of courses
   • Input grade and credit hours for each course
3. Program calculates:
   • Course grade points
   • Semester GPA
   • Final CGPA
4. A detailed report is saved in:

cgpa_report.txt

This file contains:

• Semester-wise breakdown
• Course-wise details
• GPA of each semester
• Final CGPA summary

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⚙️ Technologies Used

• C++
• iostream (input/output handling)
• fstream (file handling)
• iomanip (formatting output)
• cctype (grade normalization)

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