View Compilation Error

0_0_30346631_22490.cpp:93:1: error: 'mode' does not name a type
 mode query(int p, int l, int r, int x, int y){
 ^
0_0_30346631_22490.cpp: In function 'int solve(int, int)':
0_0_30346631_22490.cpp:113:35: error: 'query' was not declared in this scope
     auto o = query(1, 0, n-1, l, r);
                                   ^