Solved by wrfgt2e

#	Title	# Solved	Avg. Tries
11720	숫자의 합 STANDARD	132,207	1.78
14681	Quadrant Selection STANDARD	159,809	1.64
15552	빠른 A+B STANDARD	131,762	2.20
15596	정수 N개의 합	61,894	1.98

12