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shellsortalgorithm.cpp
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shellsortalgorithm.cpp
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#include <iostream>
using namespace std;
void ShellSorting(int a[], int n)
{
for (int gap = n / 2; gap > 0; gap /= 2)
{
for (int j = gap; j < n; j++)
{
int temp = a[j];
int i = 0;
for (i = j; (i >= gap) && (a[i - gap] > temp); i -= gap)
{
a[i] = a[i - gap];
}
a[i] = temp;
}
}
}
int main()
{
int n;
cout << "Enter the size of the array: " << endl;
cin >> n;
int a[n];
cout << "Enter the elements of the array" << endl;
for (int i = 0; i < n; i++)
{
cin >> a[i];
}
cout << "Befor sorting the array was: " << endl;
for (int i = 0; i < n; i++)
{
cout << a[i] << "\t";
}
cout << endl;
ShellSorting(a, n);
cout << "After sorting the array is: " << endl;
for (int i = 0; i < n; i++)
{
cout << a[i] << "\t";
}
return 0;
}