Cod sursa(job #3125404)

Utilizator Nitoi_BogdanNitoi Andrei-Bogdan Nitoi_Bogdan Data 2 mai 2023 21:55:55
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.96 kb
#include <fstream>

using namespace std;

ifstream cin ("algsort.in");
ofstream cout ("algsort.out");

int v[500010], w[500010], n;

void interclaseaza (int st, int mid, int dr)
{
    int i=st, j = mid+1;
    int k = st-1;
    while (i<=mid && j<=dr)
    {
        if (v[i] < v[j])
        {
            w[++k] = v[i++];
        }
        else
        {
            w[++k] = v[j++];
        }
    }
    for (; i<=mid; i++)
    {
        w[++k] = v[i];
    }
    for (; j<=dr; j++)
    {
        w[++k] = v[j];
    }

    for (i=st; i<=dr; i++)
        v[i] = w[i];

}

void msort (int st, int dr)
{
    if (st < dr)
    {
        int mid = (st+dr)/2;
        msort(st, mid);
        msort(mid+1, dr);
        interclaseaza(st, mid, dr);
    }
}



int main ()
{

    cin>>n;
    for (int i=1; i<=n; i++)
        cin>>v[i];

    msort(1, n);

    for (int i=1; i<=n; i++)
        cout<<v[i]<<" ";

    return 0;
}