Cod sursa(job #2219753)

Utilizator adimiclaus15Miclaus Adrian Stefan adimiclaus15 Data 9 iulie 2018 17:14:34
Problema Statistici de ordine Scor 90
Compilator cpp Status done
Runda Arhiva educationala Marime 0.86 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("sdo.in");
ofstream g("sdo.out");
int n,k,a[4000001];
int partitionare(int st,int dr)
{
    int i,j,pivot,aux;
    pivot=a[dr];
    j=st-1;
    for(i=st;i<=dr;i++)
    {
        if(a[i]<=pivot)
        {
            j++;
            aux=a[j];
            a[j]=a[i];
            a[i]=aux;
        }
    }
    return j;
}
void statistica(int st,int dr)
{
    int poz;
    poz=partitionare(st,dr);
    //cout<<poz<<" ";
    if(poz==k)
    {
        g<<a[k]<<" ";
    }
    else
    {
        if(poz<k)
        {
            statistica(poz+1,dr);
        }
        else
        {
            statistica(st,poz-1);
        }
    }
}
int main()
{
    int i;
    f>>n>>k;
    for(i=1;i<=n;i++)
    {
        f>>a[i];
    }
    statistica(1,n);
    return 0;
}