A
1e17, map will burst, then lower_bound;
B
$$f_{n} = f_{n-1}+f_{n-2} | f_{1} = 2;f_{0} = 1$$
C
Outside the school enhanced version of the tree. First sort, and then calculate the expansion zone
D
A
1e17, map will burst, then lower_bound;
B
$$f_{n} = f_{n-1}+f_{n-2} | f_{1} = 2;f_{0} = 1$$
C
Outside the school enhanced version of the tree. First sort, and then calculate the expansion zone
D