Solved by jdh4673

#	Title	# Solved	Avg. Tries
14681	Quadrant Selection STANDARD	154,187	1.64
15552	빠른 A+B STANDARD	127,332	2.20
18108	1998년생인 내가 태국에서는 2541년생?!	123,405	1.57
18870	좌표 압축	34,266	2.52

12