Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
1480	Let us count 1 2 3	1	72	14.70	1 34
1526	Ranklist Sorting	1	23	12.75	17 34
1552	Mobiles		184	27.52	34 34
1644	Trees	1	35	14.64	34 34
1687	Logic II	1	24	12.45	34 34
1712	Permalex	-1	168	19.49	34 34
1748	Sequence Partitioning II	1	54	25.26	17 34
1771	Yet Another N-Queen Problem	2	320	24.41	17 34
1789	Huffman´s Greed	1	86	45.12	17 34
1825	Free tour II	1	545	14.17	17 34
1833	Sudoku	1	49	32.22	34 34
1843	Leonardo Notebook	3	362	33.99	17 34
1875	Cool Numbers	6	164	30.38	30 34
1878	Farmers Cattle	1	57	37.62	34 34
1879	Game Time	1	101	22.59	34 34
2000	Boxes (Hard)	2	17	3.07	26 34
2009	Cryptography	1	142	4.80	1 34
2124	Last Non-Zero Digit of Factorials	4	476	25.10	26 34
2152	Hilbert Curve	1	13	19.02	34 34
2176	Finding Seats	2	220	14.87	34 34
2276	Partitions	1	19	10.76	34 34
2317	Bracket Sequence	1	51	22.78	26 34
2320	Manhattan	9	695	32.27	20 34
2321	Segments	2	147	14.81	17 34
2324	Mario	1	59	13.68	34 34
2420	Hospital at Hands		25	23.08	34 34
2531	Spatial Concepts Test	1	73	65.83	17 34
2649	Weird sorting	1	58	26.10	1 34
2666	Query on a tree IV	5	688	13.66	38 34
2668	Polygon	1	66	23.21	26 34
2678	Closest distance	1	159	13.50	28 34
2743	Prefix Tiling	1	163	27.96	17 34
2816	Common Subsequences	5	217	28.61	26 34
2829	Time Limit Exceeded	4	251	21.43	34 34
2833	Super Dice Game	1	21	10.00	17 34
2880	Wild West		99	42.47	17 34
2885	Word Rings	2	350	14.68	17 34
2899	Volunteers		55	46.91	17 34
2902	Candy IV		31	50.00	50 34
2940	Untitled Problem II		116	15.16	34
2963	Painting Blocks (Act II)	1	55	20.19	17 34
3003	Median Filter	2	20	47.58	34 34
3070	How many subsequences	1	94	9.74	34 34
3109	Longest Common Prefix	4	356	24.49	38 34
3112	Strings	1	264	30.68	17 34
3390	Tribe Council	1	57	22.07	34 34
3426	Ouroboros Snake	2	81	52.59	26 34
3488	The Top-Code	1	55	20.32	17 34
3545	Najkraci	6	181	28.80	28 34
3565	Choosing Gloves	3	84	22.88	17 34

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