Problem	itinerary
User	chien
Submission Time	2026-02-17 23:11:28
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

itinerary.cpp:24:38: error: stray ‘#’ in program
24 | occ[city].append(i) # positions are already sorted because i increases
| ^
itinerary.cpp:29:7: error: invalid preprocessing directive #first
29 | # first DFS (root = 1)
| ^~~~~
itinerary.cpp:59:15: error: invalid preprocessing directive #collect
59 | # collect non‑empty child intervals
| ^~~~~~~
itinerary.cpp:65:15: error: invalid preprocessing directive #check
65 | # check pairwise disjoint
| ^~~~~
itinerary.cpp:71:19: error: invalid preprocessing directive #check
71 | # check that no event of u lies inside a child interval
| ^~~~~
itinerary.cpp:72:19: error: invalid preprocessing directive #nonempty
72 | # nonempty are sorted and disjoint, so binary search works
|