Question

Write a program that creates a two-dimensional array initialized with test data. The program should have the following functions: Hi There I really appreciate your help with this project.

▪ getTotal . This function should accept a two-dimensional array as its argument and return the total of all the values in the array. ▪ getAverage . This function should accept a two-dimensional array as its argument and return the average of all the values in the array. ▪ getRowTotal . This function should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should

be the subscript of a row in the array. The function should return the total of the values in the specified row. ▪ getColumnTotal . This function should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a column in the array. The function should return the total of the values in the specified column. ▪ getHighestInRow . This function should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The function should return the highest value in the specified row of the array.

▪ getLowestInRow . This function should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The function should return the lowest value in the specified row of the array. Demonstrate each of the functions in this program.

Sample run:

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#include <iostream>

using namespace std;

// Constant for the number of columns

const int COLS = 5;

// Function prototypes

int getTotal(int [][COLS], int);

double getAverage(int [][COLS], int);

int getRowTotal(int [][COLS], int);

int getColumnTotal(int [][COLS], int, int);

int getHighestInRow(int [][COLS], int);

int getLowestInRow(int [][COLS], int);

int main()

{

const int ROWS = 4; // Constant for the number of rows

// Array with test data

int testArray[ROWS][COLS] =

{ { 1, 2, 3, 4, 5 },

{ 6, 7, 8, 9, 10 },

{ 11, 12, 13, 14, 15 },

{ 16, 17, 18, 19, 20 } };

// Display the total of the array elements.

cout << "The total of the array elements is "

<< getTotal(testArray, ROWS)

<< endl;

// Display the average of the array elements.

cout << "The average value of an element is "

<< getAverage(testArray, ROWS)

<< endl;

// Display the total of row 0.

cout << "The total of row 0 is "

<< getRowTotal(testArray, 0)

<< endl;

// Display the total of column 2.

cout << "The total of col 2 is "

<< getColumnTotal(testArray, 2, ROWS)

<< endl;

// Display the highest value in row 2.

cout << "The highest value in row 2 is "

<< getHighestInRow(testArray, 2)

<< endl;

// Display the lowest value in row 2.

cout << "The lowest value in row 2 is "

<< getLowestInRow(testArray, 2)

<< endl;

system("PAUSE");

return 0;

}

// ********************************************************

// The getTotal function returns the total of all *

// the elements in the array. *

// ********************************************************

int getTotal(int array[][COLS], int rows)

{

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

}

// ********************************************************

// The getAverage function returns the averave value *

// of the elements in the array. *

// ********************************************************

double getAverage(int array[][COLS], int rows)

{

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

}

// ********************************************************

// The getRowTotal function returns the total of the *

// the elements in the specified row of the array. *

// ********************************************************

int getRowTotal(int array[][COLS], int rowToTotal)

{

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

}

// ********************************************************

// The getColTotal function returns the total of the *

// the elements in the specified column of the array. *

// ********************************************************

int getColumnTotal(int array[][COLS], int colToTotal, int rows)

{

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

}

// ********************************************************

// The getHighestInRow function returns the highest *

// value in the specified row. *

// ********************************************************

int getHighestInRow(int array[][COLS], int rowToSearch)

{

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

}

// ********************************************************

// The getLowestInRow function returns the lowest *

// value in the specified row. *

// ********************************************************

int getLowestInRow(int array[][COLS], int rowToSearch)

{

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

// IMPLEMENT THIS FUNCTION

}

Annotations

Answer 1

#include <iostream>

using namespace std;
// Constant for the number of columns
const int COLS = 5;

// Function prototypes
int getTotal(int [][COLS], int);
double getAverage(int [][COLS], int);
int getRowTotal(int [][COLS], int);
int getColumnTotal(int [][COLS], int, int);
int getHighestInRow(int [][COLS], int);
int getLowestInRow(int [][COLS], int);

int main() {
    const int ROWS = 4; // Constant for the number of rows
// Array with test data
    int testArray[ROWS][COLS] =
            {{1,  2,  3,  4,  5},
             {6,  7,  8,  9,  10},
             {11, 12, 13, 14, 15},
             {16, 17, 18, 19, 20}};
// Display the total of the array elements.
    cout << "The total of the array elements is "
         << getTotal(testArray, ROWS)
         << endl;
// Display the average of the array elements.
    cout << "The average value of an element is "
         << getAverage(testArray, ROWS)
         << endl;
// Display the total of row 0.
    cout << "The total of row 0 is "
         << getRowTotal(testArray, 0)
         << endl;
// Display the total of column 2.
    cout << "The total of col 2 is "
         << getColumnTotal(testArray, 2, ROWS)
         << endl;
// Display the highest value in row 2.
    cout << "The highest value in row 2 is "
         << getHighestInRow(testArray, 2)
         << endl;
// Display the lowest value in row 2.
    cout << "The lowest value in row 2 is "
         << getLowestInRow(testArray, 2)
         << endl;
    system("PAUSE");
    return 0;
}

// ********************************************************
// The getTotal function returns the total of all *
// the elements in the array. *
// ********************************************************
int getTotal(int array[][COLS], int rows) {
    int total = 0, count = 0;
    for (int i = 0; i < rows; ++i) {
        for (int j = 0; j < COLS; ++j) {
            total += array[i][j];
        }
    }
    return total;
}

// ********************************************************
// The getAverage function returns the averave value *
// of the elements in the array. *
// ********************************************************
double getAverage(int array[][COLS], int rows) {
    double total = 0, count = 0;
    for (int i = 0; i < rows; ++i) {
        for (int j = 0; j < COLS; ++j) {
            total += array[i][j];
            count += 1;
        }
    }
    return total / count;
}

// ********************************************************
// The getRowTotal function returns the total of the *
// the elements in the specified row of the array. *
// ********************************************************
int getRowTotal(int array[][COLS], int rowToTotal) {
    int total = 0;
    for (int i = 0; i < COLS; ++i) {
        total += array[rowToTotal][i];
    }
    return total;
}

// ********************************************************
// The getColTotal function returns the total of the *
// the elements in the specified column of the array. *
// ********************************************************
int getColumnTotal(int array[][COLS], int colToTotal, int rows) {
    int total = 0;
    for (int i = 0; i < rows; ++i) {
        total += array[i][colToTotal];
    }
    return total;
}

// ********************************************************
// The getHighestInRow function returns the highest *
// value in the specified row. *
// ********************************************************
int getHighestInRow(int array[][COLS], int rowToSearch) {
    int highestIndex = 0;
    for (int i = 0; i < COLS; ++i) {
        if (array[rowToSearch][i] > array[rowToSearch][highestIndex]) {
            highestIndex = i;
        }
    }
    return array[rowToSearch][highestIndex];
}

// ********************************************************
// The getLowestInRow function returns the lowest *
// value in the specified row. *
// ********************************************************
int getLowestInRow(int array[][COLS], int rowToSearch) {
    int lowestIndex = 0;
    for (int i = 0; i < COLS; ++i) {
        if (array[rowToSearch][i] < array[rowToSearch][lowestIndex]) {
            lowestIndex = i;
        }
    }
    return array[rowToSearch][lowestIndex];
}