Cod sursa(job #117403)

Utilizator gabitzish1Gabriel Bitis gabitzish1 Data 21 decembrie 2007 13:45:22
Problema Dusman Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.87 kb
#include <stdio.h>
#include <stdlib.h>
int s[1001], n, m, d[1001][4], k;

void citire()
{
	freopen("dusmani.in","r",stdin);
	freopen("dusmani.out","w",stdout);
	
	int i, x, y;
	scanf("%d %d %d", &n, &k, &m);
	
	for (i = 1; i <= m; i++)
	{
		scanf("%d %d",&x, &y);
		d[x][++d[x][0]] = y;
		d[y][++d[y][0]] = x;
	}
}

void afis()
{
	int i;
	for (i = 1; i <= n; i++) printf("%d ",s[i]);
	printf("\n");
	exit (0);
}


void back(int nivel)
{
	int i, j, ok;
	if (nivel > n) {k--; if (!k) afis();}
	else
		for (i = 1; i <= n; i++)
		{
			ok = 1;
			for (j = 1; j < nivel; j++) if (s[j] == i) {ok = 0; break;}
			if (ok)
			{
				for (j = 1; j <= d[i][0]; j++)
					if (s[nivel - 1] == d[i][j]) {ok = 0; break;}
				if (ok)
				{
					s[nivel] = i;
					back(nivel + 1);
				}
			}
		}
}


int main()
{
	citire();
	back(1);
	return 0;
}