View Compilation Error

0_0_36576264_12245.cpp:71:1: error: 'll' does not name a type
 ll query(int L, int R, int l, int r, int u)
 ^
0_0_36576264_12245.cpp: In function 'int main()':
0_0_36576264_12245.cpp:94:54: error: 'query' was not declared in this scope
             else printf("%lld\n", query(x, y, 1, n, 1));
                                                      ^