#트리를 사용한 집합과 맵 tree_set

#	제목	푼 사람 수	평균 시도
27440	1로 만들기 3	187	2.62
4137	487-3279	37	2.59
22527	6÷2(1+2)	7	2.00
16470	A Homogeneous Country	80	2.79
15457	A Pie for a Pie	99	3.07
19077	A Place For My Head	5	2.60
31135	A Plus B Problem	5	3.60
4120	A Walk in the Park	4	2.75
25408	Abracadabra	9	2.00
11214	Absurdistan Roads III	12	3.50
7537	Acid Text	6	8.33
25992	Adjusted Average	27	3.26
27869	aFan Event Planning	78	2.79
5092	Air Old Zeeland	19	1.53
27209	Airport	14	2.36
24653	Announcements	60	1.17
15283	Archery Tournament	46	2.72
23092	Art Transaction	6	2.83
4203	Asteroid Rangers	9	2.78
6861	Attack of the CipherTexts	17	3.35
15563	Äventyr 1	75	1.96
17901	Awkward Party	26	1.88
17150	Azulejos	41	2.34
13867	Back to the Future	45	1.84
18967	Bag of Bags	4	2.25
17579	Balance Scale	29	2.66
13624	Balloon	3	2.33
19337	Balls	22	2.73
13967	Balls and Needles	32	1.69
18679	Banana	224	1.31
14794	Bathroom Stalls (Large)	82	1.78
29748	Beech Tree	6	2.17
17816	Beer Vision	11	2.55
11313	Best Buddies	36	2.33
21095	Best Subsequence	12	4.75
18294	Biodiversity	109	2.06
15421	Birthday Cake	11	2.55
19247	Boardroom Meeting	11	2.73
5973	Bovine Bridge Battle	24	1.08
4143	Bridges and Tunnels	37	1.76
24686	Browsing the Collection	4	1.00
22645	Cache Control	26	1.92
26013	Chaotic Construction	18	1.06
19838	Circuit	10	1.40
6242	City Horizon	53	2.08
14329	Clash Royale (Large)	6	5.67
18706	Coffee	74	1.74
8298	Coins	50	4.02
22628	Colored Octahedra	8	1.38
16748	Colorful Tree	52	2.08

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