Cod sursa(job #1735001)

Utilizator alexmisto342Turdean Alexandru alexmisto342 Data 28 iulie 2016 17:30:47
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.98 kb
#include <fstream>
#include <vector>
#include <string>
#include <algorithm>
#include <stdlib.h>
#include <stack>
#include <queue>
#include <iomanip>
#include <time.h>
#define inf 1<<30
//#define x first
#define y second
using namespace std;
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int i,j,n,m,a,b,c,st,dr,v[500005],nr;
int pivot(int s, int d)
{

    int x = v[ s + rand() % (d-s) ];
    s--,d++;
    while(1)
    {
        do{
            d--;
        }while(v[d] > x);

        do{
            s++;
        }while(v[s] < x);
        if(s < d)
            swap(v[s],v[d]);
        else
            return d;
    }
}
void quick(int s, int d)
{
    if(s<d)
    {
        int q = pivot(s,d);
        quick(s,q);
        quick(q + 1,d);
    }
}
int main()
{
    srand(time(NULL));
    fin >> n;
    for(i = 1; i <= n; i++)
        fin >> v[i];
    quick(1,n);
    for(i = 1; i <= n; i++)
        fout << v[i] << " ";
return 0;
}