Cod sursa(job #1900370)

Utilizator KOzarmOvidiu Badea KOzarm Data 3 martie 2017 12:32:07
Problema Statistici de ordine Scor 50
Compilator cpp Status done
Runda Arhiva educationala Marime 0.79 kb
#include <fstream>
#include <time.h>
#include <stdlib.h>
using namespace std;
ifstream fin("sdo.in");
ofstream fout("sdo.out");


int a[3000001],n,m;


void qsort(int in,int fi)
{
    if(in==fi)
    {
        fout<<a[in];
        return;
    }
    //int pivot=a[abs(rand()%fi)+in];
    int pivot=a[(in+fi)/2];
    int st=in,dr=fi;
    while(st<=dr)
    {
        while(a[st]<pivot)
            st++;
        while(a[dr]>pivot)
            dr--;
        if(st<=dr)
        {
            swap(a[st],a[dr]);
            st++;
            dr--;
        }
    }
    if(dr>=m)
        qsort(in,dr);
    else
        qsort(st,fi);
}



int main()
{
    srand(time(NULL));
    fin>>n>>m;
    for(int i=1;i<=n;i++)
        fin>>a[i];
    qsort(1,n);
    return 0;
}