View Compilation Error

0_0_25208282_11597.cpp: In function 'int search(node*, int, int, double)':
0_0_25208282_11597.cpp:77:12: error: 'l' was not declared in this scope
  if(left < l) return l;
            ^
0_0_25208282_11597.cpp:78:15: error: 'r' was not declared in this scope
     if(left > r) return r;
               ^