Cod sursa(job #617379)

Utilizator scipianusFMI Ciprian Olariu scipianus Data 14 octombrie 2011 19:11:12
Problema Dusman Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.86 kb
#include<fstream>
using namespace std;
short n,m,k,perm[1005];
bool D[1005][1005],uz[1005];

void Afisare()
{
	short i;
	ofstream fout("dusman.out");
	for(i=1;i<=n;i++)
		fout<<perm[i]<<' ';
	fout<<"\n";
	fout.close();
}

void Back(int pas)
{
	if(k<0) //deja am gasit solutia si am afisat-o
		return;
	if(pas==n) //am mai gasit o permutare
	{
		k--;
		if(k==0) //am gasit solutia si o afisez
		{
			Afisare();
			return;
		}
	}
	else
	{
		short i;
		for(i=1;i<=n;i++)
		{
			if(!uz[i] && !D[perm[pas]][i]) //nu a mai fost folosit si nu e dusman cu precedentul
			{
				perm[pas+1]=i;
				uz[i]=true;
				Back(pas+1);
				uz[i]=false;
			}
		}
	}
}

int main()
{
	int i,x,y;
	ifstream fin("dusman.in");
	fin>>n>>k>>m;
	for(i=1;i<=m;i++)
	{
		fin>>x>>y;
		D[x][y]=D[y][x]=true;
	}
	fin.close();
	
	Back(0);
	
	return 0;
}