View Compilation Error

0_0_35857409_335.cpp:13:1: error: 'queue' does not name a type
 queue<node>q;
 ^
0_0_35857409_335.cpp: In function 'int main()':
0_0_35857409_335.cpp:17:5: error: 'cin' was not declared in this scope
     cin>>t;
     ^
0_0_35857409_335.cpp:29:16: error: 'q' was not declared in this scope
         while(!q.empty ()) q.pop();
                ^
0_0_35857409_335.cpp:41:21: error: 'q' was not declared in this scope
                     q.push(p);
                     ^
0_0_35857409_335.cpp:49:21: error: 'q' was not declared in this scope
                     q.push(p);
                     ^
0_0_35857409_335.cpp:53:16: error: 'q' was not declared in this scope
         while(!q.empty())
                ^
0_0_35857409_335.cpp:82:9: error: 'cout' was not declared in this scope
         cout<<sg<<" "<<sc<<endl;
         ^
0_0_35857409_335.cpp:82:28: error: 'endl' was not declared in this scope
         cout<<sg<<" "<<sc<<endl;
                            ^