Solved by haru_i

#	Title	# Solved	Avg. Tries
1068	트리	15,923	3.37
1157	단어 공부	103,310	2.50
1269	대칭 차집합	21,350	1.53
1406	editor	26,841	3.70
1874	스택 수열	50,733	2.58
2557	Hello World STANDARD	362,304	2.54
2941	LJESNJAK	77,009	2.24
6542	Assistance Required	34	2.56
14797	Alphabet Cake (Small)	71	1.37
17298	오큰수	25,908	2.85
18882	Cowntact Tracing	124	3.60

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