C Program to Calculate Telephone Call Bills

In this tutorial you will learn about the C Program to Calculate Telephone Call Bills and its application with practical example.

In this tutorial, we will learn to create a C program that will Calculate Telephone Call Bills using C programming.

Table Of Contents−

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.

Basic Input and Output function in C Programming.
Basic C programming.
While loop in C programming.

Arithmetic operations in C Programming.

Program to Calculate Telephone Call Bills

In c programming, it is possible to take numerical input from the user and calculate Telephone Call Bills with the help of a very small amount of code. The C language has many types of header libraries which has supported function in them with the help of these files the programming is easy. But today we will Calculate Telephone Call Bills using c programming. As per the following rule:

Minimum Rs. 200 for up to 100 calls.
Plus Rs. 0.60 per call for the next 50 calls.
Plus Rs. 0.50 per call for the next 50 calls.
Plus Rs. 0.40 per call for any call beyond 200 calls.

With the help of this program, we can Calculate Telephone Call Bills.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input minutes in number from the user.

3. Checking the minutes used.

4. Checking the plans.

5. Printing the result numbers.

6. End the program.

1. Declaring the variables for the program.

2. Taking the input minutes in number from the user.

3. Checking the minutes used.

4. Checking the plans.

5. Printing the result numbers.

6. End the program.

Program to Calculate Telephone Call Bills:-

#include <stdio.h>

int main()
{
    //declaring the variable for the program
    int calls;
    float bill;

   //showing the message for the input
    printf("Enter number of calls :");
   //scanning the minutes number
    scanf("%d", &calls);

    //cheking the minutes with the plans
    if (calls <= 100)
    {
        bill = 200;
    }
    else if (calls > 100 && calls <= 150)
    {
        calls = calls - 100;
        bill = 200+(0.60 *calls);
    }
    else if (calls > 150 && calls <= 200)
    {
        calls = calls - 150;
        bill = 200+(0.60 *50) + (0.50 *calls);
    }
    else
    {
        calls = calls - 200;
        bill = 200 + (0.60 * 50) + (0.50 * 50) + (0.40 * calls);
    }

    //printing the calculated bill for the callings
    printf("Your bill is Rs. %0.2f", bill);

    return 0;
}

#include <stdio.h>

int main()

{

//declaring the variable for the program

int calls;

float bill;

//showing the message for the input

printf("Enter number of calls :");

//scanning the minutes number

scanf("%d", &calls);

//cheking the minutes with the plans

if (calls <= 100)

{

bill = 200;

}

else if (calls > 100 && calls <= 150)

{

calls = calls - 100;

bill = 200+(0.60 *calls);

}

else if (calls > 150 && calls <= 200)

{

calls = calls - 150;

bill = 200+(0.60 *50) + (0.50 *calls);

}

else

{

calls = calls - 200;

bill = 200 + (0.60 * 50) + (0.50 * 50) + (0.40 * calls);

}

//printing the calculated bill for the callings

printf("Your bill is Rs. %0.2f", bill);

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

calls = it will hold the integer value for the calls in minutes.
bill = it will hold the floating value for the bills.

Input number from the user.

Program Logic Code.

Printing output for bill generated.

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C Program to Calculate Telephone Call Bills