1-1
// function to return sum of elements in array
int sum_array(int array[], int n)
{
	int sum=0;

	for(int i=0; i<n; i++){
		if(n>0)
			sum = sum + array[i];
		else sum = 0;
	}
	return sum;
}

1-2
// function to return average of elements in an array
double average(int array[], int n)
{
	double average = 0;
	double sum = 0;

	for(int i=0; i<n; i++){
			sum = sum + array[i];
	}
	if (n>0)
		average = sum/n;
	else average = 0;
	return average;
}

1-3
// function to return number of elements that equal given parameter
int count(int array[], int n, int num)
{
	int equal = 0;

	for(int i=0; i<n; i++){
		if(array[i]==num)
			equal++;
	}
	return equal;
}

1-5
// function to count number of even numbers between 1 and given number
int count_even(int number)
{
	int count = 0;
	for (int i=1; i<=number; i++){
		if(i%2==0)
			count++;
	}
	return count;
}

2-1
// function to return smallest number in an array
int minimum(int array[], int n)
{
	int min = array[0];
	for(int i=0; i<n; i++){
		if(array[i] < min)
			min = array[i];
	}
	return min;
}

2-2
// function to return maximum element in array
int maximum(int array[], int n)
{
	int max = array[0];
	for(int i=0; i<n; i++){
		if(max < array[i])
			max = array[i];
	}
	return max;
}

2-4
//  function to determine if array is in ascending order
bool ascending(int array[], int n)
{
	for(int i=0; i<n; i++){
		if(array[i] > array[i+1])
			return false;
	}
	return true;
}

2-5
// function to determine if elements in array are descending
bool descending(int array[], int n)
{
	for(int i=0; i<n-1; i++){
		if(array[i] < array[i+1])
			return false;
	}
	return true;
}