Question

In: Computer Science

// This program uses a bubble sort to arrange an array of integers in // ascending...

// This program uses a bubble sort to arrange an array of integers in

// ascending order (smallest to largest). It then display the array

// before the sorting and after the sorting. Modify the program so it orders

// integers in descending order (largest to smallest). Then add some code

// to display the array at each step of the algorithm. You don't have to

// modify anything in the main() function. All modification are inside

// the bubbleSortArray() function.

// EXAMPLE:

// The values before the bubble sort is performed are: 9 2 0 11 5

// The values are: 9 2 0 11 5

// The values are: 9 2 0 11 5

// The values are: 9 2 11 0 5

// The values are: 9 2 11 5 0

// The values are: 9 2 11 5 0

// The values are: 9 11 2 5 0

// The values are: 9 11 5 2 0

// The values are: 11 9 5 2 0

// The values are: 11 9 5 2 0

// The values are: 11 9 5 2 0

// The values after the bubble sort is performed are: 11 9 5 2 0

#include<iostream>

using namespace std;

// Function prototypes

void bubbleSortArray(int[], int);

const int SIZE = 5;

int main()

{

        int values[SIZE] = {9,2,0,11,5};

        // Displays the array before sorting

        cout << "The values before the bubble sort is performed are: ";

        for (int count = 0; count < SIZE; count++)

               cout << values[count] << " ";

        cout << endl;

        // Sort the array in ascending order using bubble sort algorithm

        bubbleSortArray(values,SIZE);

        // Display the array after sorting

        cout << "\n\nThe values after the bubble sort is performed are: ";

        for (int count = 0; count < SIZE; count++)

               cout << values[count] << " ";

        return 0;

}

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

//                      bubbleSortArray

//

// task:               to sort values of an array in ascending order

// data in:       the array, the array size

// data out:      the sorted array

//

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

void bubbleSortArray(int array[], int elems)

{

        bool swap;

        int temp;

        int bottom = elems - 1;     // Bottom indicates the end part of the

                                    // array where the largest values have

                                    // settled in order

do

        {

               swap = false;

               for (int count = 0; count < bottom; count++)

               {

                       if (array[count] > array[count+1])

                       { // The next three lines swap the two elements

                          temp = array[count];

                          array[count] = array[count+1];

                          array[count+1] = temp;

                          swap = true;        // Indicates that a swap occurred

                       }

                      

                       // Display array at each each step

                       cout << "\nThe values are: TO BE IMPLEMENTED";                 

                       // Add code here to diplay the complete array at each step

                       // Hint: for-loop similar to the one in the main() function               

               }

        bottom--;    // Bottom is decremented by 1 since each pass through

                         // the array adds one more value that is set in order

                           

        // Loop repeats until a pass through the array with no swaps occurs           

        } while(swap != false);

}

Solutions

Expert Solution

#include<iostream>
using namespace std;
// Function prototypes
void bubbleSortArray(int[], int);
const int SIZE = 5;
int main()
{
int values[SIZE] = {9,2,0,11,5};
// Displays the array before sorting
cout << "The values before the bubble sort is performed are: ";
for (int count = 0; count < SIZE; count++)
cout << values[count] << " ";
cout << endl;
// Sort the array in ascending order using bubble sort algorithm
bubbleSortArray(values,SIZE);
// Display the array after sorting
cout << "\n\nThe values after the bubble sort is performed are: ";
for (int count = 0; count < SIZE; count++)
cout << values[count] << " ";
return 0;
}

void bubbleSortArray(int array[], int elems)
{
for(int i=0; i<elems-1; i++){   //iterating all elements
           for(int j=0; j<(elems-i-1); j++){
               if(array[j]>array[j+1]){   //for every iteration checking previous array value is greater than next value in array
                   temp=array[j];   //putting larger value in temp variable
                   array[j]=array[j+1];   //putting smaller value in previous element's place
                   array[j+1]=temp;   //putting larger value in next element's place
               }
               //displaying the elements at every step of algorithms tells which elements are swapped
               cout<<"\nThe values are: ";
               for(int i=0;i<elems;i++){
                   cout<<array[i]<<" ";   //displaying elements
               }
           }
          
       }
}

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