View Compilation Error

0_0_18071106_30394.cpp: In function 'int main()':
0_0_18071106_30394.cpp:25:5: error: 'cin' was not declared in this scope
     cin>>n;
     ^
0_0_18071106_30394.cpp:30:23: error: 'cout' was not declared in this scope
         if(a[0] == 0){cout<<"No"<<endl; continue;}
                       ^
0_0_18071106_30394.cpp:30:35: error: 'endl' was not declared in this scope
         if(a[0] == 0){cout<<"No"<<endl; continue;}
                                   ^
0_0_18071106_30394.cpp:32:13: error: 'cout' was not declared in this scope
             cout<<"Yes"<<endl;
             ^
0_0_18071106_30394.cpp:32:26: error: 'endl' was not declared in this scope
             cout<<"Yes"<<endl;
                          ^
0_0_18071106_30394.cpp:33:14: error: 'cout' was not declared in this scope
         else cout<<"No"<<endl;
              ^
0_0_18071106_30394.cpp:33:26: error: 'endl' was not declared in this scope
         else cout<<"No"<<endl;
                          ^