Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
7807	The Lucky Prisoner		27	9.93
8328	Move the books		27	33.33
10087	Sensor Network		27	20.69
10091	Three-sided Dice		27	20.71
10095	Caper Pizza		27	27.56
13031	Vision Field		27	23.89	34 34
13116	Dividing Xorland	1	27	45.45	17 9
14819	Permutation Generator		27	38.10
15061	World Cup 2010		27	57.41
15149	play with prime numbers (III)(hard )	6	27	44.51	34 28
17789	Space Bridges		27	40.20
18915	Anils Proposal	2	27	19.53	50 50
19139	Boiling Vegetables		27	34.95
19297	Nymphs from H10		27	31.37
20987	Sequence	2	27	23.18	9 17
21354	String Problem	4	27	32.69	26 26
21858	Christmas is coming	2	27	13.38	42 26
23134	Help Me Please!		27	23.36	1 17
23878	Finding GP	3	27	52.99	17 13
23930	Overlapping Words	3	27	25.76	17 17
26788	Tiho Brdo	4	27	35.56	17 23
32856	Ada and Contact	2	27	32.45	34 34
34117	Just a Palindrome	1	27	8.64	34 34
38389	Phasmophobia	5	27	30.17	39 39
41212	Bankomat	2	27	37.21	1 1
3941	Kth Shortest Path		26	29.38
5018	Street Gambler		26	43.55
7603	Fibonacci Factor	1	26	26.94
8283	Non-Decreasing Numbers	2	26	25.17	50 50
9445	Attack of the Clones		26	50.85
9750	Polygon Diagonals		26	28.17
10699	Symmetry	1	26	36.63	17 34
10822	The Prime Minister	1	26	13.35
11179	Korra in the Spirit World		26	41.24
13156	Tom and Jerry		26	12.69
15242	Betos Quest	1	26	29.44	34 26
17821	My Name is UMMM!	2	26	18.75	17 9
20930	Progression	4	26	8.84	34 34
22561	Roger and tree III	5	26	14.04	27 27
22766	Make Sets	2	26	56.72	9 26
31897	If Chain	1	26	46.67	17 17
35552	Fibonacci Power Sum	5	26	35.42	17 30
37390	Colored Development	5	26	38.16	21 30
1468	Outside it is now raining		25	24.78
1965	Set Cover	2	25	12.42	1 17
2420	Hospital at Hands		25	23.08	34 34
3010	Castle Wall		25	22.13
3581	Tree Similarity	1	25	48.63	34 34
3895	Matrix Game		25	31.71
6706	Making Chess Boards		25	26.15

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