题解： 如图：

#include<bits/stdc++.h> using namespace std; int main() { int m,d; cin >> m >> d; if (m1 || m3 || m5 || m7 || m8 || m10 || m12) cout << (d%20 ? "Oh!No!":"Play!"); else cout << (d%2==1 ? "Oh!No!":"Play!"); return 0; }#include<bits/stdc++.h> using namespace std; int main() { int m,d; cin >> m >> d; if (m1 || m3 || m5 || m7 || m8 || m10 || m12) cout << (d%20 ? "Oh!No!":"Play!"); else cout << (d%2==1 ? "Oh!No!":"Play!"); return 0; }#include<bits/stdc++.h> using namespace std; int main() { int m,d; cin >> m >> d; if (m1 || m3 || m5 || m7 || m8 || m10 || m12) cout << (d%20 ? "Oh!No!":"Play!"); else cout << (d%2==1 ? "Oh!No!":"Play!"); return 0; }

#include <bits/stdc++.h> using namespace std; int mon,day; int main() { cin>>mon>>day; if(mon1 or mon3 or mon5 or mon7 or mon8 or mon10 or mon12 ) { if(day%20) cout<<"Oh!No!"<<endl; else cout<<"Play!"; } else { if(day%2==0) cout<<"Play!"; else cout<<"Oh!No!"; } return 0; }

#include <iostream> using namespace std; int main() { int month, day; cin >> month >> day; }

#include<iostream> using namespace std; int main(){ int m,d; cin>>m>>d; if(m1 || m3 || m5 || m7 || m8 || m10 || m12){ if(d%21){ cout << "Play!"; } else{ cout << "Oh!No!"; } } else{ if(d%2==0){ cout << "Play!"; } else{ cout << "Oh!No!"; } } return 0; }

M,D=input().split() M=int(M) D=int(D) if M1 or M3 or M5 or M7 or M8 or M10 or M12 : if D%20: print('Oh!No!') else: print('Play!') else: if D%2==0: print('Play!') else: print('Oh!No!')

#include <bits/stdc++.h> using namespace std; int mon,day; int main() { cin>>mon>>day; if(mon1 or mon3 or mon5 or mon7 or mon8 or mon10 or mon12 ) { if(day%20) cout<<"Oh!No!"<<endl; else cout<<"Play!"; } else { if(day%2==0) cout<<"Play!"; else cout<<"Oh!No!"; } return 0; }

#include <iostream> using namespace std; int main(){ int m,d; cin>>m>>d; if(m1 || m3 || m5 || m7 || m8 || m10 || m12){ if(d%20){ cout<<"Oh!No!"; } else{ cout<<"Play!"; } } else{ if(d%2==0){ cout<<"Play!"; } else{ cout<<"Oh!No!"; } } return 0; }