为啥过不了

#include<iostream>
#include<iomanip>
#include<math.h>
#include<cstdio>
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;
        cout<<14-(14%4)<<endl;
        cout<<14%4;
    } else if (T == 4) {
        double sum=0;
        sum=500.0/3.0;
        printf("%6f",sum);
    } else if (T == 5) {
        cout<<(260+220)/(12+20)<<endl;
    } else if (T == 6) {
        int sum=0;
        sum=6*6+9*9;
        double sum1=sqrt(sum);
        cout<<sum1;
    } else if (T == 7) {
        int jinqian=100;
        jinqian+=10;
        cout<<jinqian<<endl;
        jinqian-=20;
        cout<<jinqian<<endl;
        jinqian=0;
        cout<<jinqian<<endl;
    } else if (T == 8) {
        int r=5;
        cout<<2*r*3.141593<<endl;
        cout<<(r*r)*3.141593<<endl;
        cout<<(4*3.141593*r*r*r)/3.0<<endl;
    } else if (T == 9) {
        int a=1,n,j,i;
        cin>>n;
        for(j=n-1;j>1;j--)
        {
            a=(a+1)*2;
        }
        cout<<a;
    } else if (T == 10) {
        int n1 = 8, t1 = 30, n2 = 10, t2 = 6; int t3 = 10; 
         double inc_rate = (1.0 * n1 * t1 - n2 * t2) / (t1 - t2);
        double init_num = n2 * t2 - inc_rate * t2;
        double ans = (init_num + t3 * inc_rate) / t3;
        cout << ans << endl;
    }   else if(T==11){
        double sum=8-5;
        cout<<100.0/sum<<"秒";
    } else if (T == 12) {
       char a='A';
       int b='M'-a;
       a=a+18; 
        cout<<b<<endl;
        cout<<a<<endl;
    } else if (T == 13) {
        double pi=3.141593;
        double ab;
        ab=4.0/3.0*(4*4*4+10*10*10)*pi;
        cout<<(int)pow(ab,1.0/3);
    } else if (T == 14) {
      int i=110;
      for(i=1;i*(120-i)<=3500;i++);
      cout<<i;
    }
    return 0;
}