Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
204	Sleepwalker		82	27.89
205	Icerink		6	11.27
206	Bitmap	226	7693	27.64	15 16
207	Three-coloring of binary trees	15	822	35.94	18 16
208	Store-keeper	2	98	15.67	34 34
209	The Map		218	43.04
210	The Altars		42	14.29
211	Primitivus recurencis		207	26.85
212	Water among Cubes	43	1135	28.41	24 28
215	Panic in the Plazas		77	19.50
217	Soldiers on Parade	2	120	28.57	26 17
220	Relevant Phrases of Annihilation		525	33.45
224	Vonny and her dominos	4	589	53.01	9 9
226	Jewelry and Fashion	1	17	14.70	34 50
227	Ordering the Soldiers	21	1339	34.56	19 22
228	Shamans		135	20.57
229	Sorting is easy		115	24.39
231	The Zebra Crossing		10	2.52
234	Getting Rid of the Holidays (Act I)		94	13.94
235	Very Fast Multiplication	22	971	31.59	26 22
236	Converting number formats		143	43.38
237	Sums in a Triangle	-14	3452	42.42	27 10
238	Getting Rid of the Holidays (Act II)		77	15.58
239	Tour de Byteland	1	79	24.86	17 17
241	Arranging the Blocks		52	12.95
243	Stable Marriage Problem	10	1210	45.29	17 22
245	Square Root	4	472	15.21	34 13
247	Chocolate	63	3493	48.48	10 18
260	Containers	2	272	45.90	23 17
261	Triangle Partitioning		198	59.44
262	Connections	1	98	27.55	34 34
263	Period	46	2202	44.94	11 17
264	Corporative Network	13	503	27.09	19 21
272	Cave Exploration	1	36	16.48
274	Johnny and the Watermelon Plantation		209	24.25
275	The Water Ringroad		2	12.12
277	City Game	13	1093	40.38	19 21
278	Bicycle		53	14.29
279	Interesting number	24	746	24.54	18 25
280	Lifts		42	18.87
283	Naptime		185	38.41
286	Selfish Cities	1	665	40.92	34 34
287	Smart Network Administrator	3	410	27.09	24 31
288	Prime or Not	56	3502	18.94	22 21
290	Polynomial Equations		56	21.51
291	Cube Root	2	236	16.50	27 17
292	Alibaba	1	155	22.85
293	Officers on the Beat		10	20.48
296	Teamwork is Crucial		66	30.77
297	Aggressive cows	869	20681	37.93	16 22

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