Cod sursa(job #2614827)

Utilizator Vlad_AnicaAnica-Popa Vlad-Ioan Vlad_Anica Data 12 mai 2020 18:43:22
Problema Sortare prin comparare Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.39 kb
#include <iostream>
#include <fstream>
#include<cstdlib>
using namespace std;

ifstream fin ("algsort.in");
ofstream fout ("algsort.out");
int a[500000];

/*void mergesort( int st, int dr )
{
    if(st!=dr)
    {
        int mij=((st+dr)>>1);
        mergesort(st,mij);
        mergesort(mij+1,dr);
        int k,j,cpst=st;
        k=st;
        j=mij+1;
        while(k<=mij && j<=dr)
            if(v[k]<v[j])
                a[st++]=v[k++];
            else
                a[st++]=v[j++];
        while(k<=mij)
            a[st++]=v[k++];
        while(j<=dr)
            a[st++]=v[j++];
        for(j=cpst;j<=dr;j++)
            v[j]=a[j];
    }
}*/
void quick_like_sonic_sort(int v[], int left, int right)
{
    if(left!=right)
    {
        int pivot = (left+right)/2;
        int b=left,e=right;
        while(b<=e)
        {
            while(v[b]<v[pivot] && b<pivot)
                b++;
            while(v[e]>v[pivot] && e>pivot)
                e--;
            if (b<=e)
                swap(v[b++], v[e--]);
        }
        if (e<right)
            quick_like_sonic_sort(v,left,e);
        if (left<b)
            quick_like_sonic_sort(v,b,right);

    }
}

int main()
{
    int i,n;
    fin >>n;
    for(i=0;i<n;i++)
        fin >> a[i];
    quick_like_sonic_sort(a,0,n-1);
    for(i=0;i<n;i++)
        fout << a[i] << " ";
    return 0;
}