·¡Ý£±£°
¼¡¤Î¿Þ¤ÏÀ©¸æ¥Õ¥í¡¼¥°¥é¥Õ¤òɽ¤·¤Æ¤¤¤ë¡£³ÆÀáÅÀ¤ÏÈÖ¹æ¤Çɽ¤·¡¢³Æ͸þÊդϻÏÅÀ¤ÎÈÖ¹æm¤È½ªÅÀ¤ÎÈÖ¹æn¤òÍѤ¤¤Æ (m, n) ¤Çɽ¸½¤¹¤ë¤³¤È¤Ë¤¹¤ë¡£¤¹¤Ù¤Æ¤Î¥Ð¥Ã¥¯ÊÕ
(back edge) ¤ò¼¨¤·¤¿¤â¤Î¤È¤·¤Æ¡¢ºÇ¤âŬÀڤʤâ¤Î¤Ï¤É¤ì¤«¡£
¡¡¡(3, 4)¡¢(7, 6)
¢¡¡(4, 5)¡¢(6, 7)
£¡¡(2, 4)¡¢(2, 6)¡¢(8, 9)
¤¡¡(3, 4)¡¢(7, 6)¡¢(10, 9)
¥¡¡(4, 5)¡¢(6, 7)¡¢(10, 9)