Question

Remember partially filled arrays where the number of elements stored in the array can be less than its capacity (the maximum number of elements allowed). We studied two different ways to represent partially filled arrays: 1) using an int variable for the numElems and 2) using a terminating value to indicate the end of elements called the sentinel value. In the code below, please fill in the details for reading values into the latter type of array that uses a sentilnel value. Don't forget to complete the printArray function.
#include
using namespace std;
void printArray(int array[]);
// Implement printArray as defined with one array parameter
int main()
{
const int CAPACITY=21;
int array[CAPACITY]; // store positive/negative int values, using 0 to indicate the end of partially filled array
cout <<"Enter up to " << CAPACITY-1 << " non-zero integers, enter 0 to end when you are done\n";
//To do: Write a loop to read up the int values and store them into array a.
// Stop reading if the user enters 0 or the array a is full.
//To do: store 0 to indicate the end of values in the array
//Display array function
printArray(array);
return 0;
}
// To do: implement display for the given array
void printArray(int array[])
{
}

Answer 1

Answer:

Complete the main method as follows:

int num;

cin>>num;

int i = 0;

while(num!=0){

array[i] = num;  

cin>>num;

i++;

}

Complete the printArray function as follows:

void printArray(int array[]){

int i =0;

while(array[i]!=0){

   cout<<array[i]<<" ";

   i++;

}}

Explanation:

Main method

This declares a variable that gets input from the user

int num;

This gets input from the user

cin>>num;

This initializes a count variable to 0. It represents the index of the current array element

int i = 0;

while(num!=0){

This inserts the inputted number to the array

array[i] = num;

This gets another input  

cin>>num;

The counter is incremented by 1

i++;

}

The above loop is repeated until the users enters 0

printArray method

This declares the array

void printArray(int array[]){

This initializes a counter variable to 0

int i =0;

This is repeated until array element is 0

while(array[i]!=0){

Print array element

   cout<<array[i]<<" ";

Increase counter by 1

   i++;

}}

See attachment for complete program

Download cpp