Cod sursa(job #308691)

Utilizator cosmin79Carabet Cosmin Andrei cosmin79 Data 28 aprilie 2009 09:57:39
Problema Generare de permutari Scor 20
Compilator cpp Status done
Runda tot Marime 0.59 kb
#include <stdio.h>
#define N 1005
int v[N],n,sol[N];
int valid(int k)
{
	if (k==1 && sol[k]==0)
		return 0;
	for (int i=1; i<=k-1; i++)
		if (sol[k]==sol[i])
			return 0;
	return 1;
}
void back(int k)
{
	if (k==n+1)
	{
		for (int i=1; i<=n; i++)
			printf("%d",sol[i]);
		printf("\n");
	}
	else
	{
		for (int i=1; i<=n; i++)
		{
			sol[k]=i;
			if (valid(k))
				back(k+1);
		}
	}
}
int main()
{
	freopen("permutari.in","r",stdin);
	freopen("permutari.out","w",stdout);
	int i;
	scanf("%d",&n);
	/*for (i=1; i<=n; i++)
		scanf("%d",&v[i]);*/
	back(1);
	return 0;
}