Ordonarea crescatoare si descrescatoare a vectorilor

  #include <iostream>

    using namespace std;

    int main()
    {
        int v[50],n,i,c1,c2,j,aux;
        cout<<"n= "; cin>>n;
        for (i=1;i<=n;i++)
        {
            cout<<"v["<<i<<"]= "; cin>>v[i];
            }

        for (i=1;i<=n/2;i++)
        {
            for (j=i+1;j<=n/2;j++)
            if (v[i]>v[j])
            {aux=v[i];
            v[i]=v[j];
            v[j]=aux;
            }
             }

                for (i=n/2+1;i<=n-1;i++)
        {
            for (j=n/2+2;j<=n;j++)
            if (v[i]>v[j])
            {aux=v[i];
            v[i]=v[j];
            v[j]=aux;
            }
             }


             for (i=1;i<=n/2;i++)
             cout<<v[i]<<" ";
             for (i=n;i>=n/2+1;i--)
             cout<<v[i]<<" ";

        return 0;
    }