View Compilation Error

0_0_21578114_8865.cpp: In function 'void getans()':
0_0_21578114_8865.cpp:115:6: error: 'fir' was not declared in this scope
   if(fir){
      ^
0_0_21578114_8865.cpp:117:13: error: 'cur' was not declared in this scope
             cur=nodes[i].qry;
             ^
0_0_21578114_8865.cpp:121:19: error: 'cur' was not declared in this scope
             A=A>>(cur-nodes[i].qry);
                   ^