#해시를 사용한 집합과 맵 hash_set

#	제목	푼 사람 수	평균 시도
4891	Not So Flat After All	26	1.27
4899	Tobo or not Tobo	4	4.25
4915	Let’s Go to the Movies	1	3.00
4939	The Sorcerer’s Donut	9	1.78
4941	Long Distance Taxi	6	2.67
4981	Organize Your Train part II	17	1.06
5021	왕위 계승	407	2.69
5089	Travelling Salesman	173	1.55
5092	Air Old Zeeland	19	1.53
5104	NoMoPhobia	41	1.63
5107	마니또	427	1.85
5134	Grocery Shopping	32	2.19
5181	Overlap!	13	2.77
5263	samba	64	1.38
5349	Duplicate SSN	86	1.30
5366	Total Count	60	1.72
5380	Jumbled Letters	12	3.00
5390	Gene Shuffle	34	1.15
5407	Song contest	1	4.00
5568	카드 놓기	4,410	1.49
5588	별자리 찾기	314	1.40
5593	最古の遺跡	30	1.43
5608	問題 ２	146	1.40
5614	問題 3	70	1.56
5729	수축하는 다각형	50	2.64
5741	Soccer League	24	2.58
5870	Concurrently Balanced Strings	13	1.69
5895	Wrong Directions	23	2.00
6088	Scrabble	7	2.57
6165	Game of Lines	92	2.27
6231	Gold Balanced Lineup	55	2.47
6242	City Horizon	54	2.06
6296	Crazy Search	42	1.33
6328	Erdös Numbers	21	6.43
6382	N-Credible Mazes	18	1.44
6454	Trip Routing	4	9.25
6474	Palindromes	71	2.63
6485	Inventory Maintenance	7	1.71
6492	Shipping Routes	13	1.23
6495	Ballot evaluation	51	3.14
6513	Deli Deli	44	1.20
6518	오타 자동 수정	20	3.20
6523	요세푸스 한 번 더!	88	2.50
6527	빙고라니!	28	2.50
6566	애너그램 그룹	113	6.10
6577	From Dusk till Dawn (or Vladimir the Vampire)	14	5.07
6583	Balancing Bank Accounts	2	1.00
6589	Heavy Cargo	39	1.67
6623	Arbitrage?	6	1.17
6652	Roman Expressions	9	2.44

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