Cod sursa(job #1492275)

Utilizator dobrebogdanDobre Bogdan Mihai dobrebogdan Data 27 septembrie 2015 15:14:22
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.81 kb
#include<cstdio>
#include<cstdlib>
int v[500005],v2[500005];
void sor(int st,int fi)
{
    if(st>=fi)
    return ;
    int in,po,x,i,t,i1,i2;
    in=st;
    po=rand();
    po=po%(fi-st+1);
    x=v[st+po];
    t=1;
    i1=st;
    i2=fi;

   for(i=st;i<=fi;i++)
   {
   if(v[i]<x)
   {
       v2[i1]=v[i];
       i1++;
   }
   else
   if(v[i]>x)
   {
       v2[i2]=v[i];
       i2--;
   }
   }
   for(i=st;i<i1;i++)
   v[i]=v2[i];
   for(i=i1;i<=i2;i++)
   v[i]=x;
   for(i=i2+1;i<=fi;i++)
   v[i]=v2[i];
    sor(st,i1-1);sor(i2+1,fi);
}
int main()
{
    freopen("algsort.in","r",stdin);
    freopen("algsort.out","w",stdout);
    int n,i,j;
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    scanf("%d",&v[i]);
    sor(1,n);
    for(i=1;i<=n;i++)
    printf("%d ",v[i]);
    return 0;
}