Cod sursa(job #2284454)

Utilizator RedXtreme45Catalin RedXtreme45 Data 17 noiembrie 2018 11:03:55
Problema Sortare prin comparare Scor 40
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.8 kb
#include <fstream>

using namespace std;
int v[1000];
int partitionare(int l,int r)
{
    int  p=v[r];
    int i=l;
    while (v[i]<=p && i<r)
    {
        i++;
    }
    for (int c=i; c<r; c++)
    {

        if (v[c]<=p)
        {
            swap(v[c],v[i]);
            i++;
        }
    }
    swap(v[i],v[r]);
    return i;
}
void qsort(int l,int r)
{
    if (r-l<1)
    {
        return;
    }
    int p=partitionare(l,r);

        qsort(l,p-1);
        qsort(p+1,r);
}
int main()
{
    int n,i;
    ifstream fin("algsort.in");
    ofstream fout("algsort.out");
    fin>>n;
    v[n+1]=-1;
    for (i=1; i<=n; i++)
        fin>>v[i];
    qsort(1,n);
    for (i=1; i<=n; i++)
        fout<<v[i]<<" ";
        fin.close();
        fout.close();
    return 0;
}