求助，Dev-c++能编译但是提交就CE了。。

#include<bits/stdc++.h>
using namespace std;
double p = 3.141593;
int main(){
int num;
cin>>num;
switch (num){
    case 1:
        cout<<"I love Luogu!";
        break;
    case 2:
        cout <<6<< " " <<4;
        break;
    case 3:
        cout<<3<<endl<<12<<endl<<2;
        break;
    case 4:
        printf("166.667");
        break;
    case 5:
        cout<<(260+220)/(20+12);
        break;
    case 6:
        cout<<sqrt(6*6+9*9);
        break;
    case 7:
        printf("110\n90\n0");
        break;
    case 8:
        cout<<cout <<p*10 << endl;
        cout << p*25<< endl;
        cout << 4 *p*125/3.0;
        break;
    case 9:
        cout<<22;
        break;
    case 10:
        cout<<9;
        break;
    case 11:
        printf("%f",100/3.0);
        break;
    case 12:
        printf("13\nR");
        break;
    case 13:
        cout<<(int)pow((4/3*3.141593*4*4*4+4/3*3.141593*10*10*10),3);
        break;
    case 14:
        cout<<50;
        break;
        }
    return 0;
}