C Programming Practice Set 10 – Mixed Programming Problems
Congratulations on reaching the final practice set of the KauraX C Programming Course!
In this section, you'll combine all the concepts you've learned throughout the course to solve practical, real-world programming problems. These programs integrate variables, loops, functions, arrays, strings, pointers, structures, file handling, and dynamic memory allocation.
Each program includes:
- 🎯 Objective
- 💡 Problem Statement
- 💻 C Program
- ▶ Sample Input
- ✅ Sample Output
- 📚 Explanation
Program 1 — Student Grade Calculator
🎯 Objective
Calculate total, percentage, and grade of a student.
Concepts Used
- Arrays
- Loops
- if-else
Grade Criteria
| Percentage | Grade |
|---|---|
| 90+ | A |
| 80–89 | B |
| 70–79 | C |
| 60–69 | D |
| Below 60 | F |
Program 2 — Scientific Calculator
Features
- Addition
- Subtraction
- Multiplication
- Division
- Modulus
- Power
- Square Root
Concepts
- Functions
- switch
- math.h
Program 3 — Electricity Bill Calculator
Calculate bill using slabs.
Example
0–100 Units → ₹1.5/unit
101–300 → ₹2.5/unit
Above 300 → ₹4/unit
Concepts
- if-else
- Arithmetic
Program 4 — Employee Salary Management
Store
- Employee ID
- Name
- Basic Salary
Calculate
- HRA
- DA
- Gross Salary
Concepts
- Structures
- Arrays
Program 5 — Student Result Management System
Store
- Name
- Roll Number
- Marks
Display
- Total
- Percentage
- Grade
- Result (Pass/Fail)
Concepts
- Structures
- Arrays
- Functions
Program 6 — Library Book Management
Store
- Book ID
- Title
- Author
Features
- Add Book
- Search Book
- Display Books
Concepts
- Structures
- Arrays
Program 7 — Inventory Management
Maintain
- Product ID
- Name
- Quantity
- Price
Display Inventory Value
Concepts
- Structures
- Arrays
Program 8 — Number Guessing Game
Computer generates a random number.
User keeps guessing until correct.
Display
- Attempts
- Success Message
Concepts
- Loops
- rand()
- srand()
Program 9 — Quiz Application
Features
- Multiple Choice Questions
- Score Calculation
- Result Display
Concepts
- Arrays
- Strings
- Conditions
Program 10 — ATM Simulation
Menu
1. Balance
2. Deposit
3. Withdraw
4. Exit
Concepts
- switch
- Functions
- Loops
Program 11 — Contact Book
Store
- Name
- Phone Number
Features
- Add Contact
- Display Contacts
- Search Contact
Concepts
- Structures
- Arrays
Program 12 — Matrix Calculator
Operations
- Addition
- Subtraction
- Multiplication
- Transpose
Concepts
- 2D Arrays
- Functions
Program 13 — File-based Student Database
Features
- Add Student
- Save Records
- Read Records
- Display Records
Concepts
- Structures
- File Handling
Program 14 — Expense Tracker
Store
- Expense Name
- Amount
- Category
Display
- Total Expenses
- Highest Expense
- Average Expense
Concepts
- Arrays
- Structures
- Loops
Program 15 — Mini Banking System
Features
- Create Account
- Deposit Money
- Withdraw Money
- Check Balance
- Exit
Concepts Used
- Structures
- Functions
- Arrays
- File Handling
- Loops
- switch
This project combines almost every major concept learned in the course.
⭐ Practice Challenge
Try building these complete applications on your own.
- Hospital Management System
- Railway Reservation System
- Hotel Management System
- Employee Payroll System
- Student Attendance System
- Online Voting System
- Inventory Billing System
- Restaurant Order System
- Address Book
- Digital Diary
📚 Summary
In this final practice set, you combined multiple C programming concepts to build complete applications.
You applied:
- Variables & Data Types
- Operators
- Decision Making
- Loops
- Functions
- Arrays
- Strings
- Pointers
- Structures & Unions
- File Handling
- Dynamic Memory Allocation
These projects simulate real-world scenarios and help bridge the gap between academic learning and practical software development.
🎉 Congratulations!
You have successfully completed all 10 Practice Sets in the KauraX C Programming Course.
By now, you have practiced:
- ✅ Basic Programming
- ✅ Loops
- ✅ Pattern Printing
- ✅ Functions
- ✅ Arrays
- ✅ Strings
- ✅ Pointers
- ✅ Structures
- ✅ File Handling
- ✅ Dynamic Memory Allocation
- ✅ Real-world Mini Applications
You are now ready to move on to the Interview Preparation Bonus Section, where you'll solve placement-focused coding questions, MCQs, output-based questions, and complete mini projects.
Happy Coding with KauraX 💙