grocery-system

A simple grocery billing system built using C language

🛒 Grocery Store Billing System in C

This is a beginner-level C program that simulates a basic billing system for a grocery store. The program allows users to input items they wish to purchase, calculates the total price, and applies discounts when applicable.

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📌 Features

• Displays available grocery items with prices.
• Takes user input for multiple items and their quantities.
• Calculates total price per item.
• Applies a 10% discount if the item cost exceeds ₹500.
• Displays a final bill summary with all item details.

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📦 Available Items

Item	Price (per unit)
Dal	₹200 per kg
Shampoo	₹450 per bottle
Chips	₹40 per packet
Cream	₹300 per tube
Oil	₹500 per bottle
Flour	₹50 per kg

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🧾 Sample Output

Available items and their prices:
Dal - Rs. 200 per kg
Shampoo - Rs. 450 per bottle
Chips - Rs. 40 per packet
Cream - Rs. 300 per tube
Oil - Rs. 500 per bottle
Flour - Rs. 50 per kg

Enter the number of different items u are purchasing: 2

 Item 1:
Enter Item name: Shampoo
Enter quantity: 2
Discount applied on this item: Rs .90.000000
Item: Shampoo , Quantity: 2, Price: Rs .810.000000

 Item 2:
Enter Item name: Chips
Enter quantity: 3
Item: Chips , Quantity: 3, Price: Rs .120.000000

Total bill amount: Rs .930.000000

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📂 How to Run

1. Copy the code from main.c.
2. Compile using any C compiler:

   gcc main.c -o billing

3. Run the executable:

   ./billing

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📋 Notes

• Input is case-sensitive. Use proper item names like Dal, not dal.
• Invalid items will be skipped with a warning message.
• Discount applies per item, not on the total bill.

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