Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
1454	Memory Distribution		27	18.00	34 17
2511	Magic Program IV		27	17.99
2882	The Warehouse	1	27	30.66	34 17
4461	A Famous Airport Manager		27	17.18
6706	Making Chess Boards		27	22.88
7807	The Lucky Prisoner		27	9.84
7862	Prisoner of Benda		27	25.83
8328	Move the books		27	24.19
10087	Sensor Network		27	20.95
11834	DOJO Corridor II	3	27	30.69	42 34
12009	Fibonacci recursive sequences (hard)	2	27	10.04	34 34
13621	Security		27	28.32
14035	Winter Crush		27	36.84
14864	Sales	1	27	25.85	34 34
14894	Good Celebration	3	27	20.10	26 30
14925	King Graffs Trip	2	27	21.53	34 34
14947	Breaking and Entering	2	27	36.08	26 9
15076	A Romantic Movie Outing		27	18.39
15996	Number Magic II		27	26.28	26 17
16956	Encoded Coordinates	1	27	33.02	17 34
17789	Space Bridges		27	40.20
18393	Hamiltonian Cycles	1	27	17.67	17 17
20971	Alia and Substrings	-1	27	22.16	34 34
21058	Dirty Plates		27	32.65
26214	Pisano Factors	3	27	30.06	26 26
26744	Coverage		27	36.94
31897	If Chain	1	27	46.53	17 17
34380	Even Semiprime Runs	4	27	63.45	28 28
34499	So Many Squares	6	27	23.76	34 37
36577	K-transfer journey	4	27	39.00	21 26
36998	Superpowertree	2	27	29.25	17 17
1270	Paint By Numbers		28	23.24
1473	Lemon Tree in the Moonlight		28	19.74	50 34
1526	Ranklist Sorting	1	28	13.10	17 34
2898	Party of Cloaked Killers		28	16.23
3005	Subdividing a Land		28	33.02
3360	Digital Image Recognition		28	20.48
3894	Bouncing Balls		28	31.54
3939	Search of Concatenated Strings		28	24.40
7623	Divisors VI	2	28	14.54	34 34
8816	Mravograd		28	28.36	17 34
8849	Imitation		28	24.82
9446	Shortest Circuit Evaluation		28	43.75
9509	Shortest Path on a Cylinder		28	31.51
10510	Sorting Machine	2	28	44.44	34 28
11054	Discords Dilemma		28	26.14
13031	Vision Field		28	24.04	34 34
15061	World Cup 2010		28	42.67
15435	Schedules		28	12.25
16297	Sir and The ICC Ratings		28	22.67

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