【ECJTU_ACM 11级队员2012年暑假训练赛(8) - K - A short problem】
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B题要套一个数论的模版,注意m=1!! C题可以二分匹配,把行列看作点; 不能开百度,开谷歌搜题解,再次强调!一经发现,取消成绩!
ECJTU_ACM 11级队员2012年暑假训练赛(8)
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