CodeForces 14E Camels :利用1-4拼成长为n的序列,使准确含有t个峰t-1个谷,求方案数 :dp
posted @ 2015-03-27 00:04 xiao_xin 阅读(268) 评论(0) 推荐(0)
posted @ 2015-03-27 00:04 xiao_xin 阅读(268) 评论(0) 推荐(0)
posted @ 2015-03-26 23:45 xiao_xin 阅读(149) 评论(0) 推荐(0)
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posted @ 2015-03-26 12:05 xiao_xin 阅读(659) 评论(0) 推荐(0)
posted @ 2015-03-26 11:51 xiao_xin 阅读(395) 评论(0) 推荐(0)