Solved by psb0623

#	Title	# Solved	Avg. Tries
18440	LCS 7	159	2.58
18441	Square Subsequences	83	7.48
18527	All Kill	125	1.71
18544	Incomparable Pairs	8	4.63
18658	Square Substrings	3	3.67
18689	Baklawa	13	2.46
18720	Bookface	53	1.89
18744	Cat	19	2.68
18805	Tree and Easy Queries	21	5.43
18838	가장 긴 증가하는 부분 수열 k	78	4.68
18861	가슴 속에 무엇인가	50	3.02
18923	Embeddings	15	1.47
19020	Decomposition	9	3.11
19062	Mikhail's Problem	6	3.33
19132	Substring Query	13	2.92
19277	ADD, DIV, MAX	143	2.20
19299	Sum of Squares of the Occurrence Counts	4	2.00
19332	Prefix-free Queries	6	8.00
19455	Bitwise Queries	128	3.13
19497	Subtract if Greater!	8	6.13
19514	Intersection is Not Allowed!	38	4.45
19515	Jong Hyok and String	8	4.50
19543	던전 지도	237	2.68
19545	소가 길을 건너간 이유 2020	84	2.62
19553	피자 배틀	114	2.79
19585	전설	865	7.45
19589	카드 셔플	64	3.13
19693	Safety	71	1.45
19728	Preparing Tests	4	4.25
19854	직선형 분자 만들기	20	5.60
19942	다이어트	2,697	3.90
19943	조명등	251	5.05
20040	Cycle Game STANDARD	7,778	1.99
20041	Escaping	352	2.07
20187	종이접기	780	2.41
20236	Easy Compare-and-Set	14	3.29
20254	Site Score	5,223	1.10
20295	사탕 배달	149	3.17
20297	Confuzzle	187	2.89
20298	파인애플 피자	73	3.11
20325	Jači Jovsi	14	1.00
20437	문자열 게임 2	2,639	2.35
20648	Rectangular Pasture	145	1.99
20701	Color the Tree	19	1.47
21300	Bottle Return	4,493	1.15
21642	Straight	12	1.50
21763	Bingo	162	3.33
21764	Histogram Sequence 2	99	1.73
21765	Opinion Pool	78	1.81
21766	Three Slices	49	5.29

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