Solved by donghyun_lee

#	Title	# Solved	Avg. Tries
1010	다리 놓기	39,890	2.09
1149	RGB거리 STANDARD	49,525	1.80
2557	Hello World STANDARD	335,345	2.54
12865	평범한 배낭 STANDARD	33,138	2.78

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