RT

代码：

#include<bits/stdc++.h>
using namespace std;

int main() {
	int n;
	cin>>n;
	switch(n) {
		case 1:
			cout<<"I love Luogu!"<<endl;
			break;
		case 2:
			cout<<2+4<<" "<<10-2-4<<endl;
			break;
		case 3:
			cout<<int(14/4)<<" "<<" "<<14-int(14/4)*4<<endl;
			break;
		case 4:
			printf("%.3lf",500.0/3);
			break;
		case 5:
			cout<<(260+220)/(12+20)<<endl;
			break;
		case 6:
			cout<<sqrt(6*6+9*9)<<endl;
			break;
		case 7:
			cout<<100+10<<" "<<100+10-20<<" "<<0<<endl;
			break;
		case 8:
			cout<<5*1.0*2*3.141593<<" "<<3.141593*5*5<<" "<<4.0/3*3.141593*3*3*3<<endl;
			break;
		case 9:
			int n=4,peach=1;
			for(int i=0; i<n-1; i++) {
				peach++;
				peach*=2;
			}
			cout<<peach<<endl;
			break;
		case 10:
			cout<<9<<endl;
			break;
		case 11:
			cout<<100*1.0/(5+8)<<endl;
			break;
		case 12:
			cout<<int('M'-'A'+1)<<endl<<char('A'-1+18)<<endl;
			break;
		case 13:
			cout<<pow((4.0/3*3.141593*4*4*4)+(4.0/3*3.141593*10*10*10),1.0/3)<<endl;
			break;
		case 14:
			cout<<50<<endl;
			break;
	}
	return 0;
}