Cod sursa(job #2082207)

Utilizator Cristian25Cristian Stanciu Cristian25 Data 5 decembrie 2017 20:24:37
Problema Sortare prin comparare Scor 40
Compilator cpp Status done
Runda Arhiva educationala Marime 0.86 kb
//Enunt: http://www.infoarena.ro/problema/algsort
#include <iostream>
#include <fstream>

using namespace std;
ifstream in("algsort.in");
ofstream out("algsort.out");
int v[500001];
void Inter(int &x,int &y)
{
    int aux=y;
    y=x;
    x=aux;
}
void Divide(int st,int dr,int &m)
{
    int i,j,pi,pj;
    i=st;
    j=dr;
    pi=0;
    pj=1;
    while(i<j)
    {
        if(v[i]>v[j])
        {
            Inter(v[i],v[j]);
            Inter(pi,pj);
        }
        i+=pi;
        j-=pj;
    }
    m=i;
}
void QuickSort(int st,int dr)
{
    int m;
    if(st<dr)
    {
        Divide(st,dr,m);
        QuickSort(st,m-1);
        QuickSort(m+1,dr);
    }
}
int main()
{
    int N;
    in>>N;
    for(int i=1;i<=N;++i)
        in>>v[i];
    QuickSort(1,N);
    for(int i=1;i<=N;++i)
        out<<v[i]<<' ';
    return 0;
}