Darkness I（2023 Hubei Provincial Collegiate Programming Contest）

#include 

#define endl '\n'
#define int ll
using ll = long long;
typedef unsigned long long ull;
using namespace std;

void GordenGhost();

signed main() {
#ifdef Gorden
    freopen("in.txt", "rt", stdin);
    freopen("out.txt", "wt", stdout);
#endif
    ios::sync_with_stdio(false);
    cin.tie(nullptr), cout.tie(nullptr);
    GordenGhost();
    return 0;
}

void GordenGhost() {
    int n,m;
    cin>>n>>m;
    if (n==1||m==1) {
        cout<