```cpp if(a<=0||b<=0||c<=0)cout<<1; else if(a>20||b>20||c>20)cout<<w[20][20][20]<<endl; //注意优先级 ``` hack数据如下： ```latex 21 -21 20 -1 -1 -1 ``` by lxuyinc @ 2023-02-25 22:32:12