2007/05/03, kameda[at]iit.tsukuba.ac.jp

----- Graph 3a --------------------------------
int edge[N][N] = {
/* 0 1 2 3 4 5 6 7 */
  {0,1,0,0,1,0,0,0},	/* 0 */
  {1,0,0,0,0,0,1,0},	/* 1 */
  {0,0,0,1,0,0,1,0},	/* 2 */
  {0,0,1,0,0,0,0,1},	/* 3 */
  {1,0,0,0,0,1,0,0},	/* 4 */
  {0,0,0,0,1,0,1,0},	/* 5 */
  {0,1,1,0,0,1,0,1},	/* 6 */
  {0,0,0,1,0,0,1,0} 	/* 7 */
};