번호	제목
18500	미네랄 2
18501	Y-Shaped Knife
18502	Bad Doctor
18503	Topological Ordering
18504	Bracket Euler Tour
18505	Tree of Charge
18506	Find a Tree
18507	One Root
18508	Delete the Points
18509	Hard Times for Your Data
18510	Program
18511	큰 수 구성하기
18512	점프 점프
18513	샘터
18514	Takeover
18515	Unfair Card Deck
18516	Diverse Singing
18517	Pick Your Own Nim
18518	Permutasino
18519	Planar Max Cut