Question

Write a program in C++ that defines an m x n two dimensional array containing integer elements, where m and n represent the numbers of rows and columns respectively. The numbers of rows and columns should be defined as constants. The program should provide the following user-defined functions with appropriate parameters:

• setArrData(...): The function accepts elements from the keyboard and stores them into the array.
• printArrData(...): The function prints the array values on the screen.
• getAverage(...): The function accepts the array, number of rows and number of columns as parameters and returns the average of all values in the array.
• findMax(...): The function accepts the array, number of rows and number of columns as parameters and prints the greatest element from each column of the array. 

Answer 1

Here is my program:

void setArrData(int a[5][5], const int m, const int n)
{
	cout << "Enter element array: " << endl;
	for (int i = 0; i < m; i++)
	{


		for (int j = 0; j < n; j++)
		{
			cin >> a[i][j];
		}
		
	}
}
void printArr(int arr[5][5], const int m, const int n)
{
	for (int i = 0; i < m; i++)
	{
		
		for (int j = 0; j < n; j++)
		{
			cout << arr[0][j] << " ";
		}
		cout << arr[i][0] << endl;
	}
}
void getAverage(int arr[5][5], const int m, const int n)
{
	int average;
	int r;
	for (int i = 0; i < m; i++)
	{


		for (int j = 0; j < n; j++)
		{
			average += arr[0][j];
			r++;
		}
		average += arr[i][0];
		r++;
	}
	average = average / r;
	cout << "Array average: " << average << endl;
}
void findMax(int arr[5][5] ,const int m , const int n)
{
	for (int i = 0; i < m; i++)
	{


		int max = arr[0][0];


		for (int j = 0; j < n; j++)
		{
			if ((arr[0][0] > arr[j + 1][i]) && (arr[j][i] > max))
			{
				max = arr[j][i];
			}
		}


		cout << "In " << i + 1 << " columns greatest element - " << max << endl;
	}
}
int main()
{
	const int m = 5;
	const int n = 5;
	int arr[m][n]{};

}