Cod sursa(job #1066347)

Utilizator DyaStarDiana Boiangiu DyaStar Data 24 decembrie 2013 16:13:45
Problema Sortare prin comparare Scor 80
Compilator cpp Status done
Runda Arhiva educationala Marime 0.7 kb
#include<iostream>
#include<stdlib.h>
#include<fstream>
using namespace std;
int v[500001],n,q;

void partitie(int li,int ls,int &q)
{int i,j;
i=li;
j=ls;
q=li+rand()%(ls-li+1);
swap(v[i],v[q]);
q=li;
while(i<j)
{while((v[q]<=v[j])&&(j!=q))
 j--;
 if(v[q]>v[j])
 {swap(v[q],v[j]);
    q=j;
 }
 while((v[i]<=v[q])&&(i!=q))
 {i++;
 if(v[i]>v[q])
 {swap(v[q],v[i]);
 q=i;
 }
 }
}
}

void quick(int li, int ls)
{int q=0;
 if(ls>li)
{partitie(li,ls,q);
 quick(li,q-1);
 quick(q+1,ls);
}
}
int main()
{ifstream f("algsort.in");
 ofstream g("algsort.out");
 f>>n;
for(int i=0;i<n;i++)
	f>>v[i];
quick(0,n-1);
for(int i=0;i<n;i++)
	g<<v[i]<<" ";
	f.close();
	g.close();
}