Solved by shepherd_nullptr

#	Title	# Solved	Avg. Tries
32499	Colorful Trees	11	1.27
31899	Compression	22	1.91
31527	Tournament Matchmaking	9	1.56
31512	Matrix Fraud	15	2.20
31311	Very Important Edge	16	2.44
30947	Cakes	18	1.39
30880	Query Isn’t ROCK	42	4.40
29772	병사 분배	17	2.41
28145	A Tree and Two Edges	18	2.28
28088	응애(EASY)	175	1.96
27889	Exceptional School Name	4,071	1.40
27592	Triangle Containment	17	1.35
27576	Eroding Pillars	6	1.67
26141	Where Am I?	22	1.50
26140	Take On Meme	18	1.17
26130	Crystal Crosswind	28	1.25
25913	전투 시뮬레이션	41	3.37
24602	Tree Hopping	47	2.47
24452	交易計画 (Trade Plan)	29	1.93
24023	아기 홍윤	340	2.26
23196	Landscape Generator	45	1.42
23195	Gene Folding	26	1.73
23078	Star Trappers	13	3.92
22911	Hidden Pancakes	46	1.80
21882	Coins on a tree	48	3.65
21592	Longest Common Substring	72	2.00
21586	Another Substring Query Problem	37	3.97
21225	Index	58	1.50
21148	TripTik	10	3.10
18118	7-세그먼트 디스플레이	109	4.26
17157	Hobson’s Trains	31	2.55
17004	Subsequences in Substrings	34	1.15
16229	반복 패턴	215	4.50
16044	Prefix Free Code	16	1.75
14749	Grasshopper Route	83	2.57
14258	XOR 그룹	70	2.56
13426	단순 경로의 수열의 도치	9	1.78
13007	ntopia	53	1.34
11689	GCD(n, k) = 1	4,428	2.50
11438	LCA 2	7,124	3.04
11280	2-SAT - 3	1,974	1.94
10745	Censoring	72	5.26
9537	Magical GCD	158	3.49
9250	문자열 집합 판별	1,149	2.76
9126	Cycling	15	5.40
6549	Largest Rectangle in a Histogram	10,862	3.65
5822	악어의 지하 도시	115	2.43
5820	경주	590	4.76
5012	Mega Inversions	450	2.13
4315	Marbles on a tree	112	2.26

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