sbSSBSBSBBBSSBSBSBSBSBSBSBSBSSBSB

#include <bits/stdc++.h> using namespace std; int main() { int x,y; cin>>x>>y; if (x >= -1 && x <= 1 && y >= -1 && y <= 1) { cout << "yes"; } else { cout << "no"; }

return 0;

}

核心代码

```cpp
    if (x >= -1 && x <= 1 && y >= -1 && y <= 1) {
        cout << "yes";
    } else {
        cout << "no";
    }

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