To generate all the subarrays of a given array O(n^3) !!!!

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#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,i,j,k;
    cout<<"enter the size of array : \n";
    cin>>n;
    int a[n];
    for(i=0;i<n;i++)
    cin>>a[i];
    cout<<"All subarrays are: ";
    for(i=0;i<n;i++)
    {
        for(j=i;j<n;j++)
        {
            for(k=i;k<=j;k++)
            cout<<a[k]<<" ";
            cout<<endl;
        }
    }
}

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