C++從入門到入土-遞推算法

1.過河卒ios 代碼：spa #include <iostream> #include <cstring> #include <cstdio> using namespace std; int xi[9]={0,-2,-1,1,2,2,1,-1,-2}, yi[9]={0,1,2,2,1,-1,-2,-2,-1}; unsigned long long a[21][21],n,m,x,

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