CF371E Subway Innovation Ìâ½â
ÌâÄ¿Á´½Ó£ºCF »òÕß Âå¹È ¶ÔÓÚ¾ø¶ÔÖµµÄ¼¸ºa56爆大奖在线娱乐âÒåÀ´Ëµ£¬ÕâÌâÊÇÔÚÖ±ÏßÉϵÄÁ½µã¼äµÄ¾àÀ룬ΪÁË×ܵľàÀëºÍ×îÏ£¬Ê×ÏÈ×îºÃÈÃËüÃÇÁ½Á½Ö®¼ä×îºÃ¶¼½ô°¤×Å¡£ ÓÉÓÚѯÎʵÄÊÇ \((i,j)\) ²»Öز»Â©µÄ¶ÔÓйأ¬¼´ \((i<j)\ +\ (i>j)\ +\ (i=j)=all(i,j)\)£¬ÓÖÒòΪ£¬\((i,j)\