View Compilation Error

0_0_17208785_7491.cpp: In function 'void lookUp(int, int, int, int, int)':
0_0_17208785_7491.cpp:44:21: error: return-statement with a value, in function returning 'void' [-fpermissive]
     return tree[root]; 
                     ^
0_0_17208785_7491.cpp:47:3: error: 'ret' was not declared in this scope
   ret = 1;
   ^
0_0_17208785_7491.cpp: At global scope:
0_0_17208785_7491.cpp:50:6: error: expected unqualified-id before 'return'
   }  return ret;
      ^
0_0_17208785_7491.cpp:51:1: error: expected declaration before '}' token
 }
 ^