Cod sursa(job #3001100)

Utilizator theo_scrie_codGhinea Theodor theo_scrie_cod Data 13 martie 2023 11:16:24
Problema Sortare prin comparare Scor 80
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.71 kb

#include <fstream>
using namespace std;
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int v[500005];

void quicksort(int left, int right)
{
    if(left>=right)
        return;
    int firstfree=left;
    int mid=(left+right)/2;
    swap(v[right], v[mid]);
    for(int i=left; i<=right-1; i++)
        if(v[i]<v[right])
        {
            swap(v[i], v[firstfree]);
            firstfree++;
        }
    swap(v[right], v[firstfree]);
    quicksort(left, firstfree-1);
    quicksort(firstfree+1, right);
}

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