Question

//This program is your final exam.

//Please fill in the functions at the bottom of the file. (evenCount and insertItem)

//DO NOT CHANGE ANYTHING ELSE.

//main has all the code needed to test your functions. Once your functions are written, please build and make sure it works fine

//Note that in this case, the list is not sorted and does not need to be. Your goal is to insert the number in the given position.

#include <iostream>

#include <fstream>

using namespace std;

//constants

const int CAP = 100;

//function prototypes

bool openFile(ifstream &);

void readData(ifstream &, int [], int &);

void printData(const int [], int);

void evenCount(const int[], int);

void insertItem(int[], int &, int, int);

int main()

{

ifstream inFile;

int list[CAP], size = 0;

if (!openFile(inFile))

{

cout << "Program terminating!! File not found!" << endl;

return -1;

}

//read the data from the file

readData(inFile, list, size);

inFile.close();

cout << "Data in file:" << endl;

printData(list, size);

//insert a few items

insertItem(list, size, 15, 5);

cout << "Inserted in position 5:" << endl;

printData(list, size);

insertItem(list, size, 101, 2);

cout << "Inserted in position 2:" << endl;

printData(list, size);

insertItem(list, size, 215, 12);

cout << "Inserted in position 12:" << endl;

printData(list, size);

//call the evenCount function

evenCount(list, size);

//end program

cin.ignore(100, '\n');

cout << "Press any key to continue...";

getchar();

return 0;

}

//function to open file

bool openFile(ifstream &inFile)

{

inFile.open("numbers.txt");

if (!inFile)

{

return false;

}

return true;

}

//reads the data from the file

void readData(ifstream &inFile, int list[], int &size)

{

while (!inFile.eof())

{

inFile >> list[size++];

}

}

//print the contents of the array

void printData(const int list[], int size)

{

for (int i = 0; i < size; i++)

{

cout << list[i] << endl;

}

cout << endl;

}

//insert an item (newNum) in the given position (newPos)

void insertItem(int list[], int &size, int newNum, int newPos)

{

//insert code here

}

//count the even numbers in the list and output in this function

void evenCount(const int list[], int size)

{

//insert code here

}

Answer 1

// do comment if any problem arises

// code

#include <iostream>

#include <fstream>

using namespace std;

//constants

const int CAP = 100;

//function prototypes

bool openFile(ifstream &);

void readData(ifstream &, int[], int &);

void printData(const int[], int);

void evenCount(const int[], int);

void insertItem(int[], int &, int, int);

int main()

{

    ifstream inFile;

    int list[CAP], size = 0;

    if (!openFile(inFile))

    {

        cout << "Program terminating!! File not found!" << endl;

        return -1;

    }

    //read the data from the file

    readData(inFile, list, size);

    inFile.close();

    cout << "Data in file:" << endl;

    printData(list, size);

    //insert a few items

    insertItem(list, size, 15, 5);

    cout << "Inserted in position 5:" << endl;

    printData(list, size);

    insertItem(list, size, 101, 2);

    cout << "Inserted in position 2:" << endl;

    printData(list, size);

    insertItem(list, size, 215, 12);

    cout << "Inserted in position 12:" << endl;

    printData(list, size);

    //call the evenCount function

    evenCount(list, size);

    //end program

    cin.ignore(100, '\n');

    cout << "Press any key to continue...";

    getchar();

    return 0;

}

//function to open file

bool openFile(ifstream &inFile)

{

    inFile.open("numbers.txt");

    if (!inFile)

    {

        return false;

    }

    return true;

}

//reads the data from the file

void readData(ifstream &inFile, int list[], int &size)

{

    while (!inFile.eof())

    {

        inFile >> list[size++];

    }

}

//print the contents of the array

void printData(const int list[], int size)

{

    for (int i = 0; i < size; i++)

    {

        cout << list[i] << endl;

    }

    cout << endl;

}

//insert an item (newNum) in the given position (newPos)

void insertItem(int list[], int &size, int newNum, int newPos)

{

    // move list to right

    for (int i = size; i > newPos; i--)

        list[i] = list[i - 1];

    // insert

    list[newPos] = newNum;

}

//count the even numbers in the list and output in this function

void evenCount(const int list[], int size)

{

    int even = 0;

    for (int i = 0; i < size; i++)

        if (list[i] % 2 == 0)

            even++;

    cout << "Even: " << even << endl;

}

Output: