#구현 implementation

#	제목	푼 사람 수	평균 시도
20766	Complicated documents	48	3.92
20781	Fewest Moves Count	6	2.33
20811	Öar	81	1.07
20814	Planet X	2	1.00
20817	Konsonantkoll	67	1.82
20821	Pariserhjulet	6	1.50
20833	Kuber	1,214	1.15
20839	Betygsättning	930	1.96
20840	Volleybollmatchen	39	1.62
20847	Födelsedagsmemorisering	33	1.21
20861	Skattkartan	32	1.28
20868	Fluortanten	23	1.35
20877	Minigolf	223	1.21
20882	Röksignaler	11	1.00
20906	Flip Flow	99	1.06
20907	Gravity Grid	33	2.70
20908	Hectic Harbour	7	3.00
20914	QWERTY 자판	90	1.73
20923	숫자 할리갈리 게임	505	4.08
20926	얼음 미로	301	3.45
20936	우선순위 계산기	63	3.14
20939	달고나	15	6.00
20947	습격받은 도시	248	2.33
20954	택배 기사 민서	77	2.01
20959	Šifra	149	1.37
20969	Dance Mooves	24	2.58
20976	2 番目に大きい整数 (The Second Largest Integer)	1,794	1.17
20977	JOI ソート (JOI Sort)	265	1.17
20978	共通要素 (Common Elements)	154	1.29
20979	往復すごろく (Round Sugoroku)	34	1.35
21001	A Very Different Word	40	2.65
21007	Patrol Drone	7	2.29
21009	Visible Trees	68	1.15
21022	Three Points for a Win	236	1.08
21033	Sending Blessings	11	3.64
21035	Simple Operations in Matrix	97	1.12
21058	Language Survey	17	5.29
21059	Methodic Multiplication	101	1.15
21113	Returning Lights To Box	12	1.67
21130	Business Semiconductor Units	8	1.38
21143	Magic Trick	142	1.13
21144	Missing Number	118	1.53
21148	TripTik	10	3.10
21150	All in the Family	8	3.75
21154	Over the Hill, Part 1	35	1.71
21156	A Rank Problem	71	1.54
21159	Simply Sudoku	10	1.20
21167	Curve Speed	213	2.00
21170	Digital Speedometer	12	2.83
21173	ICPC Record Matching	17	4.06

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