// Test getScore, findLowest, Calaverage
#include <iostream>
using namespace std;

const int MAX=20;

void getScore(int[], int&);
int findLowest(int[], int);
float calAverage(int[], int);

int main()
{	int scores[MAX];
	int size;	// # of scores
	int lowest;
	float avg;

	getScore(scores, size);
	lowest = findLowest(scores, size);
	avg = calAverage(scores, size);

	cout << "\n\nLowest score: " << lowest << endl; 
	cout << "Average: " << avg << endl;

	cout << "\n\nDone.\n\n";
	return 0;
}
//---------------------------------------
float calAverage(int grade[], int size)
{	int sum = 0;
	for(int i=0; i<size; i++)
		sum += grade[i];
	return 1.0*sum/size;
}
//-----------------------------------------
void getScore(int scores[], int& size)
{	cout << "Input a score: (Ctr-d to quit) ";
	size = 0;
	cin >> scores[size];
	while(cin)
	{	size++;
		cout << "Input a score: (Ctr-d to quit) ";
		cin >> scores[size];
	}
}
//-----------------------------------
int findLowest(int arr[], int size)
{	int lowest = arr[0];
	for(int i=1; i<size; i++)
		if(lowest>arr[i])
			lowest = arr[i];
	return lowest;
}