Cod sursa(job #3242652)

Utilizator UengineDavid Enachescu Uengine Data 12 septembrie 2024 21:58:42
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.83 kb
#include <fstream>

using namespace std;

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

const int N = 5e5;
int v[N], aux[N];

void interclasare(int st, int dr){
    int m = (st + dr) / 2, i = st, j = m + 1, k = st;
    while (i <= m && j <= dr){
        if (v[i] <= v[j])
            aux[k++] = v[i++];
        else
            aux[k++] = v[j++];
    }
    while (i <= m)
        aux[k++] = v[i++];
    while (j <= dr)
        aux[k++] = v[j++];
    for (k = st; k <= dr; k++)
        v[k] = aux[k];
}

void ms(int st, int dr){
    if (st == dr)
        return;
    int m = (st + dr) / 2;
    ms(st, m);
    ms(m + 1, dr);
    interclasare(st, dr);
}

int main()
{
    int n;
    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> v[i];
    ms(0, n - 1);
    for (int i = 0; i < n; i++)
        cout << v[i] << ' ';
    return 0;
}