Cod sursa(job #1051248)

Utilizator NitaMihaitavoidcube NitaMihaita Data 9 decembrie 2013 21:07:28
Problema Sortare prin comparare Scor 40
Compilator cpp Status done
Runda Arhiva educationala Marime 0.78 kb
#include <fstream>
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
void sw(int &a,int &b)
{
    int aux;
    aux=a;a=b;b=aux;
}
void qs(int v[],int a,int b)
{
    if(a<b)
    {
    int i,j,q,aux;
    q=a;
    i=a;j=b;
    while(i<j)
    {
        while(v[j]>=v[q]&&j>i) j--;
        sw(v[j],v[q]);q=j;
        while(v[i]<=v[q]&&j>i) i++;
        sw(v[i],v[q]);q=i;
    }

    qs(v,a,i-1);
    qs(v,i+1,b);
    }
}
void citire(int v[],int &n)
{
    int i;
    f>>n;
    for(i=1;i<=n;i++)
    f>>v[i];
}


void afisare(int v[],int n)
{
    int i;
    for(i=1;i<=n;i++)
        g<<v[i]<<' ';
}
int main()
{
    int n,v[500001];
    citire(v,n);
    qs(v,1,n);
    afisare(v,n);
    f.close();
    g.close();
    return 0;
}