// File name: assign1.cpp
// Class: Cs 212 Comp. Prog. II 
// Author: L'Tia King
// Instructor: Dr. Wang
// Date: 2 February 2009
// Compile: g++ assign1.cpp 
// Run: ./a.out
//
// Goal: The program prompts a message and lets the user input real 
//       numbers, and quits when a zero or a negative number is entered. 
//       It will output the average value, the smallest, and the largest
//       typed in, displayed to one decimal point.

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
	// 1. decl
	float x;
	float smallest=100;
	float avg;
	float largest=1;
	int numtotal;
	int totalnum;
	int numbers = 0;

	// 2. read
	cout << "Input a pos., or quit for 0 and neg.: ";
	cin >> x;
	smallest = x;


	// 3. process and out
	while(x > 0)
	{
		cout << fixed << setprecision(1);
		// count the numbers
		numbers ++;
		// add x to the running total
		totalnum += static_cast<float> x;
		// check for the largest number
		if(largest < x)
		   largest = x;
		// check for the smallest number
		if(smallest > x)
		   smallest = x;
		cout << "The number is: " << x;
		cout << "\n\nInput a pos., or quit for 0/neg.: ";
		cin >> x;	
	}

// Calculate the average

avg = static_cast<float>(totalnum) / numtotal;

	cout << "Smallest is: " << smallest << ". Largest is: " << largest << "\n";
	cout << "\nAverage is: " << avg;
	cout << "\n\nDone. Bye-Bye.\n\n";
	return 0;
}