Insertion Sort in C++

I wrote this program that will accept ten numbers and then the program will sort the given number and display the sorted values using an insertion sort algorithm using the C++ programming language.

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Sample Program Output

Program Listing

insertion_sort.cpp

#include <iostream>

// insertion_sort.cpp

// Jake R. Pomperada, MAED-IT

// December 2, 2019

#include <iostream>

using namespace std;

void printArray(int array[], int size)

{

 cout <<"\t";

  for (int i = 0; i < size; i++)

  {

    cout <<" " <<array[i] << " ";

  }

  cout << endl;

}

void insertionSort(int array[], int size)

{

  for (int step = 1; step < size; step++)

  {

    int key = array[step];

    int j = step - 1;

    while (key < array[j] && j >= 0)

    {

     

      array[j + 1] = array[j];

      --j;

    }

    array[j + 1] = key;

  }

}

int main()

{

 int data[10];

 cout <<"\n\n";

 cout << "\tInsertion Sort in C++";

 cout <<"\n\n";

 for (int a=0; a<10; a++) {

    cout << "\tEnter item value number " <<a+1 <<" : ";

cin >> a[data]; 

  }

  cout <<"\n\n";

  cout << "\tUnSorted array: \n";

  cout <<"\n\n";

  cout <<"\t";

  for (int a=0; a<10; a++) {

  cout <<" " <<a[data] <<" ";

  }

  cout <<"\n\n";

  int size = sizeof(data) / sizeof(data[0]);

  insertionSort(data, size);

  cout << "\tSorted array: \n";

  cout <<"\n\n";

  printArray(data, size);

}