Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
36718	Fashionable self-describing numbers	6	51	17.33	30 34
36937	Random Magic Trick	3	14	40.00	34 34
36941	AND Queries	4	12	25.74	23 34
37226	Recursive Sequence (Version III)	4	8	33.33	34 34
37380	Acronym	4	31	26.15	30 34
37443	Acronym II	4	29	15.51	34 34
37921	Birthday Present	3	37	30.64	42 34
40016	Robot World	2	64	11.10	34 34
40148	Distinct Cyclings	1	9	23.81	42 34
40192	Battle Of The Bastards - Kings Vs Rooks	3	14	32.31	34 34
40636	Stacks of boxes	2	45	27.62	26 34
40643	The Revenge Of Anti Hash	1	12	13.27	34 34
15648	Commando	26	738	32.23	27 34
19543	Can you answer these queries VIII	8	192	27.32	37 35
1557	Can you answer these queries II	23	1580	24.30	30 36
6717	Two Paths	8	217	17.52	34 36
2051	Cell Phone	4	159	31.34	28 36
5542	Counting pairs	4	131	26.46	39 36
6489	Finding the Kth Prime (Hard)	7	82	10.08	42 36
20173	Counting Divisors (square)	6	434	21.70	26 36
37514	A Summatory (Extreme)	5	45	23.66	34 36
3196	Divisibility Relation	4	285	21.01	17 37
6988	Beer Machines	5	32	18.72	43 37
18186	Machine Mayhem	4	13	30.40	34 37
37114	PermRLE	4	10	30.77	27 37
11848	Power with Combinatorics	8	432	20.27	25 37
14905	Zig when you zag	4	31	30.26	30 38
21640	Nested Palindromes	2	25	20.81	38 38
25180	Gyanbabas Admission Test	2	67	19.37	30 38
25458	Boxes	4	96	38.00	38 38
32222	Ada and Panels	7	56	49.28	26 38
9576	Dynamic Graph Connectivity	8	299	37.53	41 38
26778	NO GCD	11	101	22.34	29 38
422	Transposing is Even More Fun	2	289	25.92	28 39
687	Repeats	1	931	25.16	34 39
1479	The GbAaY Kingdom	1	125	19.23	28 39
2138	Pibonacci	3	43	14.58	26 39
2670	Count Minimum Spanning Trees	4	180	17.18	28 39
6169	Standing Sequence	2	118	28.49	34 39
7335	Spheres	3	129	9.55	17 39
8075	Sequence	3	57	27.66	39 39
8839	Longest Common Difference Subsequence	3	72	24.75	34 39
9687	Xavier is Learning to Count	1	31	18.55	39 39
10354	Count Strings	3	17	7.98	39 39
10820	Obsession	4	32	23.98	39 39
11202	Number Theory		32	31.12	39 39
13106	KOSARE	3	304	48.76	23 39
17559	Two Game	5	317	36.97	1 39
19406	Fibonacci extraction Sum	2	49	26.38	34 39
19997	Moon Safari (Hard)	3	46	55.15	34 39

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