WA:×5×5
TRE:×3
AC:×2
#include<bits/stdc++.h> using namespace std; long long n,unm,ans=1; int main() { cin>>n; for(int i=1;i<=n;i++){ if(unm<=n){ unm++; ans*=i; } } if(ans/12==0) cout<<"Yes"; else cout<<"No"; return 0; }
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