Cod sursa(job #520722)

Utilizator Andreid91Ciocan Andrei Andreid91 Data 10 ianuarie 2011 09:36:22
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.66 kb
#include<fstream.h>
#include<algorithm>
#include<vector>
#include<cstdio>


using namespace std;

vector<int> v[100];

vector <int> :: iterator it;

int a[500005];

int main()
{
	
	freopen("algsort.in","r",stdin);
	freopen("algsort.out","w",stdout);
	
	int i,k,n,q,val,nr;
	scanf("%d",&n); 
	
	for (i=1;i<=n;i++)
		scanf("%d", a + i);
	int p=4;
	k=1<<p;
	
	for (q=1;q<=31/p+1;++q)
	{
		for (i=1;i<=n;++i)
		{
			val=(a[i]>>(p*q-p));
			val=val-((val>>p)<<p);
			v[val].push_back(a[i]);
		}
		nr=0;
		for (i=0;i<k;++i)
		{
			for (it=v[i].begin();it<v[i].end();++it)
				a[++nr]=*it;
			v[i].clear();
		}
	}
	
	
	
	for (i=1;i<=n;i++)
		printf("%d ",a[i]);
	return 0;
}