Cod sursa(job #3255504)

Utilizator Robert_NicuNicu Robert Cristian Robert_Nicu Data 10 noiembrie 2024 19:28:55
Problema Sortare prin comparare Scor 80
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.86 kb
#include <bits/stdc++.h>
using namespace std;

ifstream fin("algsort.in");
ofstream fout("algsort.out");

int n , v[500005];

void QuickSort(int st, int dr)
{
    if(st < dr)
    {
        //determinam pivorul
        int m = (st + dr) / 2;
        int aux = v[st];
        v[st] = v[m];
        v[m] = aux;
        int i = st , j = dr, d = 0;
        while(i < j)
        {
            if(v[i] > v[j])
            {
                aux = v[i];
                v[i] = v[j];
                v[j] = aux;
                d = 1 - d;
            }
            i += d;
            j -= 1 - d;
        }
        QuickSort(st , i - 1);
        QuickSort(i + 1 , dr);
    }
}

int main(){
    fin >> n;
    for(int i = 0 ; i < n ; i ++)
        fin >> v[i];
    QuickSort(0 , n - 1);
    for(int i = 0 ; i < n ; i ++)
        fout << v[i] << " ";
}