Cod sursa(job #2507434)

Utilizator gabriel_froneaFronea Gabriel gabriel_fronea Data 10 decembrie 2019 11:49:02
Problema Sortare prin comparare Scor 40
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.68 kb
#include <fstream>

using namespace std;

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

int v[100001];

int partitie(int v[], int st, int dr)
{
    int p=st;
    for(int i=st; i<dr; i++)
    {
        if(v[i]<=v[dr])
        {
            swap(v[i], v[p++]);
        }
    }
    swap(v[p], v[dr]);
    return p;
}
void qs(int v[], int st, int dr)
{
    if(st>=dr)
    {
        return;
    }
    int p=partitie(v, st, dr);
    qs(v, st, p-1);
    qs(v, p+1, dr);
}

int main()
{
    int n, st, dr;
    in>>n;
    st=0;
    dr=n-1;
    for(int i=0; i<n; i++)
    {
        in>>v[i];
    }
    qs(v, st, dr);
    for(int i=0; i<n; i++)
    {
        out<<v[i]<<" ";
    }
    return 0;
}