Question

//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

#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 5:" << endl;
        printData(list, size);
        insertItem(list, size, 215, 12);
        cout << "Inserted in position 5:" << 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

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 5:" << endl;
printData(list, size);
insertItem(list, size, 215, 12);
cout << "Inserted in position 5:" << 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)
{
int i;
for(i=size-1;i>=newPos;i--){
           list[i+1]=list[i];       //repositioning the elements in array
}
list[newPos]=newNum;
}

//count the even numbers in the list and output in this function
void evenCount(const int list[], int size)
{
int i,c=0;
for(i=0;i<size;i++){
           if(list[i]%2==0){       //checking number in array even or not
               c++;
           }
}
cout<<"even count is:"<<c;
}

code screenshot: