ÌâÄ¿ÄÚÈÝ
10¡¢Ä³·ÄÖ¯³§µÄÒ»¸ö³µ¼äÓм¼Êõ¹¤ÈËmÃû£¨m¡ÊN*£©£¬±àºÅ·Ö±ðΪ1¡¢2¡¢3¡¢¡¡¢m£¬n̨£¨n¡ÊN*£©Ö¯²¼»ú£¬±àºÅ·Ö±ðΪ1¡¢2¡¢3¡¢¡¡¢n£¬¶¨Òå¼ÇºÅaij£ºÈôµÚiÃû¹¤È˲Ù×÷Á˵ÚjºÅÖ¯²¼»ú£¬¹æ¶¨aij=1£¬·ñÔòaij=0£¬ÔòµÈʽa41+a42+a43+¡+a4n=3µÄʵ¼ÊÒâÒåÊÇ£¨¡¡¡¡£©
·ÖÎö£ºÓÉÌâÒ⣬¶¨Òå¼ÇºÅaij£ºÈôµÚiÃû¹¤È˲Ù×÷Á˵ÚjºÅÖ¯²¼»ú£¬¹æ¶¨aij=1£¬·ñÔòaij=0£¬ÏÖÔÚÓÐa41+a42+a43+¡+a4n=3˵Ã÷µÚ4Ãû¹¤È˲Ù×÷ÁËn̨»úÆ÷ÖеÄÈý¸ö£®
½â´ð£º½â£ºÓÉÌâÒ⣬a41+a42+a43+¡+a4n=3˵Ã÷µÚ4Ãû¹¤×÷ÈËÔ±²Ù×÷ÁËn̨»úÆ÷ÖеÄÈý¸ö
¼´µÚ4Ãû¹¤È˲Ù×÷ÁË3̨֯²¼»ú
¹ÊÑ¡A
¼´µÚ4Ãû¹¤È˲Ù×÷ÁË3̨֯²¼»ú
¹ÊÑ¡A
µãÆÀ£º±¾Ì⿼²éÓ³ÉäµÄÓ¦Ó㬽âÌâµÄ¹Ø¼üÊÇÕýÈ·Àí½âÌâÖеĶ¨Ò壬Àí½âÓɴ˶¨Òå¸ø³öµÄÓ³Éä¹Øϵ£¬´Ó¶ø¶Ôa41+a42+a43+¡+a4n=3µÄʵ¼ÊÒâÒå×÷³öÅжÏ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿