Cod sursa(job #1827627)

Utilizator GabiTulbaGabi Tulba-Lecu GabiTulba Data 12 decembrie 2016 01:01:00
Problema Sortare prin comparare Scor 80
Compilator cpp Status done
Runda Arhiva educationala Marime 0.82 kb
#include <cstdio>
#include <cstring>
#define MaxN 500005
#define MaxD 100000
using namespace std;

FILE *IN,*OUT;


int fr[MaxD],v[MaxN],aux[MaxN],N,Max=0,Log;
void Sort()
{
	int Div=1,Size=1;
	Log=0;
	while(Size<Max)
		Log++,Size*=MaxD;//ma uit sa vad de cate ori trebuie sa fac o operatie
	for(int i=1;i<=Log;i++)
	{
		memset(fr,0,sizeof fr);
		for(int i=1;i<=N;i++)
			fr[(v[i]/Div)%MaxD]++;
		for(int i=1;i<MaxD;i++)
			fr[i]+=fr[i-1];
		for(int i=N;i>0;i--)
			aux[fr[(v[i]/Div)%MaxD]--]=v[i];
		memcpy(v,aux,sizeof v);
		Div*=MaxD;
	}
}
int main()
{
	IN=fopen("algsort.in","r");
    OUT=fopen("algsort.out","w");
	fscanf(IN,"%d",&N);
	for(int i=1;i<=N;i++)
	{
		fscanf(IN,"%d",&v[i]);
		if(Max<v[i])
			Max=v[i];
	}
	Sort();
	for(int i=1;i<=N;i++)
		fprintf(OUT,"%d ",v[i]);
	return 0;
}