3 4 8 11 WA求大佬看看

#include<bits/stdc++.h>
#include<math.h>
using namespace std;
int main() {
    int T;
    cin >> T;
    if (T == 1) {
        cout << "I love Luogu!";
    } else if (T == 2) {
        cout << 2 + 4 << " " << 10 - 2 - 4;
    } else if (T == 3) {
        cout<<14/4<<endl<<(14/4)*4<<endl<<14-(14/4);
    } else if (T == 4) {
        printf("%.6lf",500/3*1.0);
    } else if (T == 5) {
        cout<<(260+220)/(12+20);
    } else if (T == 6) {
        cout<<sqrt(pow(6,2)+pow(9,2));
    } else if (T == 7) {
        cout<<100+10<<endl<<100+10-20<<endl<<0;
    } else if (T == 8) {
        cout<<2*5<<endl<<3.141593*pow(5,2)<<endl<<3.141593*(4/3)*pow(5,3);
    } else if (T == 9) {
        cout<<(((((1+1)*2)+1)*2)+1)*2;
    } else if (T == 10) {
        cout<<9;
    } else if (T == 11) {
        cout<<100/(8-5);
    } else if (T == 12) {
        cout<<13<<endl<<'R';
    } else if (T == 13) {
        cout<<(int)(pow(4.0/3.0*3.141593*(4*4*4+10*10*10),1.0*1/3));
    } else if (T == 14) {
        cout<<50;
    }
    return 0;
}