View Compilation Error

0_0_37652535_32364.cpp: In function 'int query(int, int, int)':
0_0_37652535_32364.cpp:165:31: error: 'le' was not declared in this scope
             int ans=query(u*2,le,mid);
                               ^
0_0_37652535_32364.cpp:166:43: error: 'ri' was not declared in this scope
             ans=max(ans,query(u*2+1,mid+1,ri));
                                           ^