Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
28413	Ada and Fence	6	45	27.93	15 17
30349	Strange Waca	9	45	20.53	17 22
34648	Seven	5	45	44.44	11 21
34975	Prime Friendly Numbers	10	45	20.11	28 26
37476	Personal LCM	4	45	13.46	21 30
42546	Hu-Gi-Oh	2	45	37.31	1 1
481	Roots of polynomial		46	27.34	17 34
2202	Tan and His Interesting Game		46	25.18
3646	Adventure Tourism		46	14.43
4324	The fate of the pineapple		46	28.98
5128	Bomb the Bridge	1	46	30.80	17 17
5153	Compressed String		46	28.21
5469	Houses	1	46	25.56	34 26
6832	To Score or not to score		46	29.01
8661	Bogosort		46	15.27
9687	Xavier is Learning to Count	1	46	20.05	39 39
11474	Totient Game		46	37.65
11885	Drawing Triangles with Brainf##k		46	33.68
12651	Finding Fishes	1	46	27.87
16389	Play with Strings	1	46	23.20	17 34
17944	Mickey Mouse Magic Trick v4	1	46	56.59	1 34
18667	Product of factorials (hard)	3	46	27.10	28 34
19722	Modular Tetration	4	46	70.57	30 30
20849	Interesting queries	3	46	34.12	34 34
22384	Saving Planet Bomber (Easy)	3	46	41.84	1 27
22535	String Play	5	46	42.62	21 21
38365	Asacoco Prescription	2	46	19.71	17 26
39219	Brenden Politeness Filter	1	46	48.00	1 1
42535	Hugo"s Tennis Training	4	46	48.54	1 5
418	Necklace		47	17.18
2023	One Instruction Computer Simulator		47	10.58	42 42
2323	Broken Compass		47	13.78
2648	Archiver	1	47	13.74	34 50
4951	Bridges! More bridges!	1	47	16.63	1 34
7323	Happy Days		47	44.74
8317	Red Balls		47	44.77
9447	Genetics		47	33.53
9896	Train delays		47	26.15
10376	String Factorization!	1	47	10.76	26 42
10508	Buttons		47	24.03
10675	GENIJALAC		47	51.02
12893	Short Select	1	47	42.38
12960	Collision on Christmas Eve	1	47	20.95
19301	Operators (new ver)	3	47	6.88	38 17
21092	DRAW TABLE	6	47	53.79	17 1
21963	Flowery Trails	3	47	43.26	17 13
25384	Shuffles	2	47	50.00	1 17
25476	Induced favoritism	1	47	29.65	17 34
26790	Stockade	2	47	37.33	17 17
31974	Ada and Birthday	4	47	25.16	21 14

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