Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
9972	The SKey	1	84	16.62	17 26
9973	Problem Set Score	4	918	39.55	12 17
9974	Men From Mars		22	37.70
9975	No Stories Any More!	1	48	30.28	34 34
9985	Distance	2	63	23.06	42 34
10050	Power Tower City	7	148	66.65	26 29
10070	Trick or Treat	2	253	67.00	12 17
10071	Working at the Restaurant		39	40.38
10072	Lights	1	63	47.47	17 34
10073	Darts	1	37	60.00
10074	Genetics		9	33.33
10075	Haunted Graveyard	2	42	19.17	26 26
10076	Slalom		32	33.67
10077	Routing		23	43.55
10078	Happy Telephones	2	294	48.89	1 1
10079	Stammering Aliens	1	167	32.18	17 17
10080	Lawn Mower	4	231	52.57	12 6
10081	Periodic Points		12	35.90
10082	Comparing Answers		64	13.14
10084	Fake Scoreboard		24	45.95
10085	Palindromic DNA	1	20	27.78
10086	Jumping Monkey		59	25.95
10087	Sensor Network		27	20.95
10088	Assembly Line		37	33.33
10089	Locks and Keys	1	18	33.73	34 17
10091	Three-sided Dice		31	22.00
10092	Party Night		30	30.00
10095	Caper Pizza		29	26.47
10096	Lights (Extreme)		56	29.80	17 17
10105	Alphabet Soup		31	42.57
10106	Coin Collecting	1	49	35.12	17 50
10107	Cybercrime Donut Investigation	2	56	25.17	34 42
10108	Distributing Ballot Boxes	32	1165	36.21	11 15
10109	Game, Set and Match		102	66.32
10110	Guess the Numbers		124	44.36	17 17
10111	Nonnegative Partial Sums	15	534	30.05	19 19
10112	Peer Review		116	32.79
10113	Regular Convex Polygon		101	30.40
10114	Remoteland	3	135	56.00	34 28
10141	STRAZA		49	40.13	34 17
10145	Birthday Cake	7	260	36.32	12 12
10210	After Party Transfers	1	39	4.99	34 28
10228	Magic Grid	44	1802	26.43	14 19
10229	Save the Students	1	183	26.08	17 17
10230	Robbing Gringotts		56	11.07
10231	Wizarding Duel	1	75	19.48	1 1
10232	Distinct Primes	85	5932	45.48	10 9
10233	Magical Bridges	9	170	27.03	29 24
10235	Array Diversity	1	192	23.96
10236	Generations	1	57	20.53	34 34

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