Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	USERS	ACC %	DIFFICULTY C I
827	Trigonometric optimization	78	26.99	1 34
850	Soccer Choreography	4	4.00
866	DNA Translation	117	21.44
872	Mark-up	121	29.73	34 9
900	Split Windows	32	57.63	17 1
901	Index Generation	39	54.22	17 1
903	Double Vision	64	56.49	1 1
944	Free Tour	16	3.22
972	Birthday	120	19.34	17 17
987	Mobile	70	15.53	17 17
999	Generalized Matrioshkas	414	32.46
1004	Polygon Encoder	55	9.29	17 1
1166	Dead Fraction	318	23.25	12 17
1182	Sorted bit squence	292	42.04	17 1
1267	Origin of Life	35	22.18	34 1
1269	CN Tower (Hard)	23	11.69	34 34
1270	Paint By Numbers	21	20.96
1335	Maze	64	17.74	17 17
1421	Goods	140	29.12	1 34
1444	DEL Command II	34	8.99	17 34
1447	A Game of Toy Bricks	38	25.93	1 1
1451	01 Sequence	95	28.32	1 34
1452	Birthday Cake	89	24.89	17 34
1453	Optimal Connected Subset	148	45.94	17 28
1454	Memory Distribution	21	16.48	34 17
1455	Program Analyser	24	14.41	34 17
1456	The Secret of a Lost City	20	37.14	17 17
1457	Help Blue Mary Please! (Act I)	13	1.75	34 17
1460	A Simple Calculator in the Galaxy	33	40.98
1462	Barbarians	46	14.68
1463	Robot Number M	75	45.65
1464	Editor II	60	18.73
1468	Outside it is now raining	25	24.78
1472	Tom and Jerry	61	38.46
1473	Lemon Tree in the Moonlight	22	19.49
1477	Play with a Tree	88	14.68
1478	The Easiest Problem	68	8.92
1483	Colorful Lights Party	13	10.84
1487	Query on a tree III	559	17.77	34 1
1536	Help Blue Mary Please! (Act III)	29	21.15
1552	Mobiles	184	27.53	34 34
1554	Zoo	110	28.76
1671	Another Mathematical Problem	61	11.35
1672	The Great Indian Wedding	45	22.27
1674	The Explosion	153	26.55
1676	Text Generator	228	21.31	17 26
1678	Royal Treasury	70	11.71
1683	Expressions	355	40.03
1685	Grocery store	198	24.17
1689	Hard Problem	15	25.81

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