Cod sursa(job #2955414)

Utilizator DKMKDMatei Filibiu DKMKD Data 16 decembrie 2022 22:23:31
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.08 kb
#include <fstream>

using namespace std;

#define NMAX 500000
int v[NMAX], h[NMAX];
void Merge(int st, int mid, int dr)
{
    int i = st, j = mid + 1, poz = 0;
    while (i <= mid && j <= dr)
    {
        if (v[i] < v[j])
        {
            h[poz++] = v[i];
            i++;
        }
        else
        {
            h[poz++] = v[j];
            j++;
        }
    }

    while (i <= mid)
    {
        h[poz++] = v[i];
        i++;
    }

    while (j <= dr)
    {
        h[poz++] = v[j];
        j++;
    }

    for (i = 0; i < poz; i++)
    {
        v[i + st] = h[i];
        h[i] = 0;
    }
}

void MergeSort(int st, int dr)
{
    if (st == dr)
        return;

    int mij = (st + dr) / 2;
    MergeSort(st, mij);
    MergeSort(mij + 1, dr);

    Merge(st, mij, dr);
}
int main()
{
    ifstream fin("algsort.in");
    ofstream fout("algsort.out");

    int n;
    fin >> n;

    for (int i = 0; i < n; i++)
        fin >> v[i];

    MergeSort(0, n - 1);


    for (int i = 0; i < n; i++)
        fout << v[i] << " ";
}