Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
18	The Bytelandian Cryptographer (Act II)	4	666	29.54	25 1
87	Football	1	62	21.74	17 1
92	Cutting off Squares	-1	254	42.63	1 1
131	Square dance		322	50.21	1 1
180	How to pack containers	1	100	36.60	1 1
184	Automatic Teller Machines	1	204	33.73	1 1
204	Sleepwalker		90	26.70	1 1
209	The Map		238	39.89	1 1
210	The Altars		49	16.27	17 1
229	Sorting is easy	1	118	19.15	17 1
236	Converting number formats		149	42.42	1 1
238	Getting Rid of the Holidays (Act II)		81	15.98	1 1
272	Cave Exploration		39	10.02	17 1
274	Johnny and the Watermelon Plantation	-1	213	24.34	1 1
278	Bicycle		56	13.08	34 1
280	Lifts		43	17.38	17 1
283	Naptime		608	25.46	17 1
301	Booklets	-1	184	41.28	1 1
303	The Unstable Cube	1	46	29.05	17 1
351	Ha-noi!		382	42.22	1 1
366	Farmer	1	265	16.94	1 1
385	Game schedule required		148	28.48	34 1
393	Hexagon		70	48.70	17 1
396	Hit or Miss		129	44.62	1 1
410	Variable Radix Huffman Encoding	1	173	18.96	1 1
677	A place for the brewery		210	27.71	17 1
682	Pairs of Integers		204	25.26	1 1
684	Another Assignment Problem	1	103	12.40	34 1
696	Truth or not	1	271	21.77	1 1
697	Matrix Words		94	25.33	1 1
700	Branch Prediction		75	18.24	17 1
729	Move your armies		78	20.32	1 1
738	Another Counting Problem	1	225	40.41	1 1
757	Thermal Luminescence		121	39.26	1 1
900	Split Windows		32	57.63	17 1
901	Index Generation		38	53.66	17 1
903	Double Vision		64	56.49	1 1
1004	Polygon Encoder		55	9.34	17 1
1110	Sudoku	4	463	38.67	34 1
1182	Sorted bit squence		292	42.04	17 1
1267	Origin of Life		35	22.18	34 1
1325	Partial Sums	2	223	24.73	9 1
1326	A Chase In WonderLand	2	404	13.47	9 1
1431	Projections Of A Polygon	2	116	10.20	9 1
2038	Rectangle Tiling	2	112	40.75	1 1
2070	Minimum Distance		81	16.84	17 1
2274	Island Hopping	1	202	24.91	17 1
2735	Simplify the Railroad System		56	36.02	17 1
3004	Life Game	-1	69	33.94	34 1
3249	Typesettin	2	34	45.45	1 1

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