# C Program for Monthly Bill of a Newspaper

Algorithm for to calculate monthly bill of newspaper

Algorithm:

• Read the number of days.
• Read the new paper cost.
• if there is a service charge, calculate price using service charge + (no of days* news paper cost)
• If there is no service charge calculate using, no of days* news paper cost
• print the total news paper bill

# include

int main()
{
int no_of_days;
float paper_per_day_cost, total_bill, service_charge;
char service;

``````// Read the Number of days paper delivered
printf("Enter the number of days paper delivered:");
scanf("%d", &no_of_days);
//Number of days must be greater than 0 to calculate price
if(no_of_days <= 0 || no_of_days > 31 )
{
printf("No paper bill for the month or wrong data entered.");
}
else
{
printf("Enter the paper cost per day:");
scanf("%f", &paper_per_day_cost);

// Paper cost must be greater than zero
if(paper_per_day_cost<=0)
{
}
else
{
// Service Charge is optional, add service charge if required
printf("Do you have service charge? Enter Y or N :");
scanf("%s", &service);

if(service=='Y' || service=='y')
{
printf("Enter Service Charge : ");
scanf("%f", &service_charge);
total_bill = service_charge + no_of_days * paper_per_day_cost;
}
else
{
total_bill = no_of_days * paper_per_day_cost;
}
printf("Total bill is : \$%0.2f", total_bill);
}
}
return 0;``````

}

output

```Enter the number of days paper delivered:30
Enter the paper cost per day:3.50
Do you have service charge? Enter Y or N :Y
Enter Service Charge : 30
Total bill is: \$135.00```