View Compilation Error

0_0_32733753_28092.cpp: In function 'bool operator<(node, node)':
0_0_32733753_28092.cpp:7:9: error: invalid use of non-static data member 'node::rp'
     int rp;
         ^
0_0_32733753_28092.cpp:11:12: error: from this location
         if(rp==a.rp)
            ^
0_0_32733753_28092.cpp: In function 'int main()':
0_0_32733753_28092.cpp:60:17: error: 't' was not declared in this scope
                 t=que[x].top();
                 ^