View Compilation Error

0_0_14699616_10302.cpp: In function 'int query(int, int, int, int, int, int)':
0_0_14699616_10302.cpp:5:16: error: 'tree' was not declared in this scope
         return tree[level][qleft];
                ^
0_0_14699616_10302.cpp:11:12: error: 'toLeft' was not declared in this scope
         ss=toLeft[level][qright];
            ^
0_0_14699616_10302.cpp:13:11: error: 'toLeft' was not declared in this scope
         s=toLeft[level][qleft-1];
           ^