#include<iostream>
#include<cstdlib>
using namespace std;
class array
{
int a[10],n,b[10];
public:
void create(int n);
void display(int n);
void sort(int low,int high);
void mergesort(int low,int mid,int high);
};
void array::create(int n)
{
cout<<"the elements are:\n";
for(int i=0;i<n;i++)
cin>>a[i];
}
void array::display(int n)
{
for(int i=0;i<n;i++)
cout<<a[i]<<endl;
}
void array::sort(int low,int high)
{
if(low<high)
{
int mid=(low+high)/2;
sort(low,mid);
sort(mid+1,high);
mergesort(low,mid,high);
}
}
void array::mergesort(int low,int mid,int high)
{
int h=low,k=0;
int i=low;
int j=mid+1;
while(h<=mid&&j<=high)
{
if(a[h]<a[j])
b[k++]=a[h++];
else
b[k++]=a[j++];
}
while(h<=mid)
{
b[k++]=a[h++];
}
while(j<=high)
b[k++]=a[j++];
j=0;
for(int k=low;k<=high;k++)
a[k]=b[j++];
}
int main()
{
array a;
int n;
cout<<"the no.of elements in array are:\n";
cin>>n;
a.create(n);
cout<<"the given array is:\n";
a.display(n);
int low=0;
int high=n-1;
a.sort(low,high);
cout<<"the sorted array is:\n";
a.display(n);
return 0;
}
OUTPUT:-
the no.of elements in array are:
5
the elements are:
1
6
8
2
3
the given array is:
1
6
8
2
3
the sorted array is:
1
2
3
6
8
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