Solved by gudrms64

#	Title	# Solved	Avg. Tries
11720	숫자의 합 STANDARD	129,666	1.79
14681	Quadrant Selection STANDARD	156,797	1.64
15552	빠른 A+B STANDARD	129,337	2.20
15596	정수 N개의 합	61,828	1.98

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