摘要:
题目链接:https://www.luogu.org/problemnew/show/P1939 对于矩阵推序列的式子: 由题意知: f[x+1] =1 f[x] + 0 f[x 1] + 1 f[x 2] f[x] = 1 f[x] + 0 f[x 1] + 0 f[x 2] f[x 1] = 0 阅读全文
posted @ 2018-09-14 21:06
Misaka_Azusa
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摘要:
题目链接:https://www.luogu.org/problemnew/show/P4017 DAG + DP include include include include include using namespace std; const int maxn = 500010; const 阅读全文
posted @ 2018-09-14 21:00
Misaka_Azusa
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