Cod sursa(job #2088081)

Utilizator MarinPeptenaruMarin Vasile Peptenaru MarinPeptenaru Data 14 decembrie 2017 19:10:14
Problema Statistici de ordine Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.72 kb
#include <bits/stdc++.h>

using namespace std;
ifstream in("sdo.in");
ofstream out("sdo.out");
const int nx=3000002;
int v[nx],n,k;
void qsort (int n, int v[])
{
    if(n>1)
    {
        int p=v[1];
        const int size=n/2+2;
        int a[size],b[size];
        int na=0, nb=0;
        for(int i=2; i<=n; i++)
            if(v[i]>p) b[++nb]=v[i];
            else a[++na]=v[i];
        qsort(na,a);
        qsort(nb,b);
        n=0;
        for(int i=1; i<=na; i++)
            v[++n]=a[i];
        v[++n]=p;
        for(int i=1; i<=nb; i++)
            v[++n]=b[i];
    }
}
int main()
{
    in>>n>>k;
    for(int i=1; i<=n; i++)
        in>>v[i];
    qsort(n,v);
    out<<v[k];
    return 0;
}