Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
25450	When Does The World End	1	5	5.69	34 50
26845	Daenerys wants to Conquer	1	6	47.27	50 50
26893	Pristojba	2	16	18.18	26 50
30945	Non Coprime Sequences	2	20	21.08	50 50
31971	NEO	1	10	3.60	34 50
31975	Ada and Scarecrow		14	16.84	50 50
32028	Ada and Parties		3	1.38	50 50
33039	Amazing Factor Sequence (hard)	2	17	62.60	50 50
33048	Find Linear Recurrence	4	23	34.48	42 50
33062	LCM Pesticide	2	7	30.23	50 50
35675	Primes in GCD Table (Hard)	2	9	30.77	50 50
36789	Linear Diophantine Equation	2	9	15.83	50 50
37446	Breaking Math	2	7	25.22	50 50
40501	A Simple Sieve	3	6	13.64	45 50
75	Editor		51	36.88
76	Editor Inverse		64	14.98
102	GX Light Pipeline Inc		76	30.54
146	Fast Multiplication Again		36	12.50
150	Where to Drink the Plonk?	1	495	34.69
175	Polygon		66	22.90
183	Assembler circuits		58	31.03
199	Empty Cuboids	-1	142	34.74
205	Icerink		8	12.79
231	The Zebra Crossing		12	2.67
241	Arranging the Blocks		52	13.04
261	Triangle Partitioning		199	58.11
275	The Water Ringroad		2	10.00
292	Alibaba	1	177	22.95
293	Officers on the Beat		11	21.43
296	Teamwork is Crucial		70	31.59
350	Landscaping	1	91	29.91
380	Bullshit Bingo		708	33.43
383	European railroad tracks		222	30.17
386	Help the problem setter		97	45.82
404	Scanner		56	12.24
418	Necklace		43	16.76
760	Convex Hull 3D		117	41.47
850	Soccer Choreography		4	4.02
866	DNA Translation		117	21.51
944	Free Tour		16	3.34
999	Generalized Matrioshkas		413	32.45
1270	Paint By Numbers		21	20.96
1444	DEL Command II		32	8.74
1447	A Game of Toy Bricks		37	25.79
1451	01 Sequence		94	28.29
1452	Birthday Cake		79	23.69
1454	Memory Distribution		20	18.01
1455	Program Analyser		25	15.25
1456	The Secret of a Lost City		17	35.94
1458	Help Blue Mary Please! (Act II)	1	80	17.26

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