Call Cost Calculator

Project Description

This project is a simple C-based program to calculate call costs based on call duration and the selected provider. It was developed as part of the Final Project for the Logic and Algorithm Practice course.

Features

• Calculate call duration in seconds.
• Provide provider options (Telkomsel, Indosat, Tri).
• Calculate call costs based on the selected provider.
• Allow users to repeat the process or exit the program.

Technologies Used

• Programming Language: C
• IDE: Code::Blocks
• Libraries:
  • stdio.h (Input/Output)
  • stdlib.h (Conversion and comparison operations)

How the Program Works

1. Input Call Duration:
   The user is prompted to enter the start and end times of the call. The program calculates the call duration in seconds.

2. Provider Selection:
   The user can choose one of three available providers. Costs are calculated based on the selected provider.

3. Menu Loop:
   The user can return to the menu to calculate costs with different durations or providers, or exit the program.

Code Structure

• Variable Declarations:
  Variables such as jamA, menitA, jamB, menitB are used to store call times.
  The biaya variable stores the cost per second for each provider.

• Calculation Logic:
  Arithmetic operations are used to calculate the call duration.
  The switch-case structure is used to handle provider selection.
  A do-while loop is implemented to allow users to repeat the process.

• Error Handling:
  Invalid inputs are handled through the default condition in the switch-case.

Program Interface

1. Initial Screen:
   Prompts the user to input call duration.

2. Provider Menu:
   Displays provider options.

3. Final Output:
   Shows call costs based on duration and selected provider.

Installation and Usage

1. Compile the Program:

   • Open the project in Code::Blocks.
   • Compile and run the program.

2. Usage Instructions:

   • Enter call duration.
   • Select a provider.
   • View the calculated call cost.

Developer

• Name: Ilham Muhammad Arif
• Course: Logic and Algorithm Practice
• Institution: Politeknik Negeri Semarang