(C) Phone bill Calculator

[Neo_Reloaded]

By Chernobyl

Here is another of my coding exercises from college, this will allow the operator to input a persons name, then it will ask for each call length in minutes until the bill is more than or equal to $100. It will then display the total number of calls, the total bill cost and the average cost per call

/*
	Problem 2
	By Stephen V (Chernobyl)
	WwW.Console-World.Org
*/

#include <stdio.h>

void main()
{
	char name[15];
	short int callMins = 0, calls = 0, callNum = 1;
	float callCost = 0, bill = 0, avCost = 0;

	printf("Please enter the phone account holders name: ");
	gets(name);

	do
	{
		printf("Please enter the length (in minutes) of call %d:", callNum);
		scanf("%d", &callMins);

		if(callMins <= 5)
		{
			callCost = callMins * .15;
		}
		else
		{
			if(callMins <= 15)
			{
				callCost = (callMins - 5) * .10 + .75;
			}
			else
			{
				callCost = (callMins - 15) * .075 + 1.75;
			}
		}
		
		bill = bill + callCost;
		avCost = bill / callNum;
		calls++;
		callNum++;
	}
	while(bill <= 100);

	//Display bill information
	printf("\nTotal Calls: %d\n", calls);
	printf("Bill total: $%.3f\n", bill);
	printf("Average Call Cost: $%.3f", avCost);

	printf("\n\nPress ENTER to continue!");
	fflush(stdin);
	getchar();
}