摘要:
1 /* 2 题意:求a(n)=a(n-1)+a(n-2)+a(n-3)+......a(n-k)+... k 8 using namespace std; 9 10 typedef long long LL; 11 const int MAXN = 100005; 12 const LL MOD7 = 1e9+7; 13 const LL MOD9 = 1... 阅读全文
posted @ 2018-07-31 21:24
LeeSongt
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