View Compilation Error

0_0_38209654_25003.cpp:14:7: error: 'node' was not declared in this scope
 queue<node>q;
       ^
0_0_38209654_25003.cpp:14:11: error: template argument 1 is invalid
 queue<node>q;
           ^
0_0_38209654_25003.cpp:14:11: error: template argument 2 is invalid
0_0_38209654_25003.cpp:14:13: error: invalid type in declaration before ';' token
 queue<node>q;
             ^
0_0_38209654_25003.cpp: In function 'int main()':
0_0_38209654_25003.cpp:26:18: error: request for member 'empty' in 'q', which is of non-class type 'int'
         while(!q.empty())
                  ^
0_0_38209654_25003.cpp:28:15: error: request for member 'pop' in 'q', which is of non-class type 'int'
             q.pop();
               ^
0_0_38209654_25003.cpp:32:56: error: 'w' was not declared in this scope
         cout<<"To get from "<<a<<" to "<<b<<" takes "<<w<<" knight moves."<<'\n';
                                                        ^