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Write a C++ Program to implement Shell Sort using Array

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robaa
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2022-11-26
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Write a C++ Program to implement Shell Sort using Array. Here’s simple Program to implement Shell Sort using Array in C++ Programming Language.

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robaa
2022-11-26
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What is an Array ?

Arrays a kind of data structure that can store a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables of the same type.

 
 

Instead of declaring individual variables, such as number0, number1, …, and number99, you declare one array variable such as numbers and use numbers[0], numbers[1], and …, numbers[99] to represent individual variables. A specific element in an array is accessed by an index.

All arrays consist of contiguous memory locations. The lowest address corresponds to the first element and the highest address to the last element.

Here is source code of the C++ Program to implement Shell Sort using Array. The C++ program is successfully compiled and run(on Codeblocks) on a Windows system. The program output is also shown in below.

 

SOURCE CODE : :

/*  C++ Program to implement Shell Sort using Array  */

#include<iostream>

using namespace std;

void sort(int a[],int n)
{
    int gap,i,j,temp;

    for(gap=n/2;gap>0;gap/=2)
    {
        for(i=gap;i<n;i+=1)
        {
            temp=a[i];
            for(j=i;j>=gap&&a[j-gap]>temp;j-=gap)
                a[j]=a[j-gap];

            a[j]=temp;
        }
    }
}

int main()
{
    int a[20],i,n;

    cout<<"Enter size of Array :: ";
    cin>>n;
    cout<<"\nEnter elements to the array :: \n";

    for(i=0;i<n;++i)
    {
        cout<<"\nEnter "<<i+1<<" element :: ";
        cin>>a[i];
    }


    sort(a,n);

    cout<<"\nAfter shell sort, Sorted List is :: \n\n";
    for(i=0;i<n;++i)
    {
        cout<<a[i]<<"  ";
    }

    cout<<"\n";

    return 0;
}

OUTPUT : :

/*  C++ Program to implement Shell Sort using Array  */

Enter size of Array :: 6

Enter elements to the array ::

Enter 1 element :: 4

Enter 2 element :: 2

Enter 3 element :: 1

Enter 4 element :: 7

Enter 5 element :: 9

Enter 6 element :: 0

After shell sort, Sorted List is ::

0  1  2  4  7  9

Process returned 0

Above is the source code for C++ Program to implement Shell Sort using Array which is successfully compiled and run on Windows System.The Output of the program is shown above .

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