题解

oscar | 2026-07-02 20:57 | 4

``` #include<iostream> #include<cstring> #include<cstdio> #include<algorithm> #define ll long long using namespace std; const int fx[] = {0, -2, -1, 1, 2, 2, 1, -1, -2}; const int fy[] = {0, …

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