View Compilation Error

0_0_30165186_6332.cpp: In member function 'void SegTree::Modify(int, int, int, int, long long int)':
0_0_30165186_6332.cpp:47:39: error: 'll' was not declared in this scope
     if (idx <= m) Modify(o * 2, l, m, ll, rr, v);
                                       ^
0_0_30165186_6332.cpp:47:43: error: 'rr' was not declared in this scope
     if (idx <= m) Modify(o * 2, l, m, ll, rr, v);
                                           ^
0_0_30165186_6332.cpp:48:38: error: 'll' was not declared in this scope
     else Modify(o * 2 + 1, m + 1, r, ll, rr, v);
                                      ^
0_0_30165186_6332.cpp:48:42: error: 'rr' was not declared in this scope
     else Modify(o * 2 + 1, m + 1, r, ll, rr, v);
                                          ^