Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
74	Divisor Summation	82	14437	20.89	7 10
244	Internally Stable Sets		85	17.88
360	Bottom Coder (Easy)	10	3748	34.62	4 10
361	Bottom Coder (Hard)		108	24.72
439	Not So Fast Multiplication	2	1484	24.95	17 17
440	The Turtle´s Shortest Path	7	1895	36.53	17 9
442	Searching the Graph	4	941	32.69	5 1
450	Enormous Input Test	35	9482	59.11	5 3
453	Sums in a Triangle (tutorial)	7	1533	42.16	13 11
490	Armies		310	31.31
491	The Cursed Room		152	36.84
500	Turbo Sort	9	5026	39.12	7 6
509	6-Kolorowanie Grafów Planarnych		81	20.62
511	Easy Sorting		1716	40.73	1 4
527	Just for Fun (Easy)		95	8.08
536	How many Fibs		545	26.74
644	Byteland Money Exchange		15	27.85
691	Hotel Floors	3	606	34.22	9 9
692	Fruit Farm		233	26.92	17 17
732	Johnsons Algorithm	1	40	38.86	17 17
752	Power it!	11	398	57.89	17 17
762	Problems Collection (Volume 1)	1	150	48.45	1 17
851	Tickets lottery	1	355	45.27	1 1
1023	Arranging Dominoes	1	663	40.92	1 1
1118	Snowman		547	33.48
1238	Special Nim Game		278	62.99	11 11
1239	Recurrence Equation Finder		18	70.59
1279	Run Length Decoding		83	38.31	1 1
1282	How many Islands	4	526	34.19	6 12
1392	Sum of Factors	1	327	13.38
1393	Ping Pong Probability	2	237	52.06	1 17
1394	Dividing Spaces		16	62.96
1397	Put Them on a Circle	1	114	32.84	1 17
1415	Problems Collection (Volume 2)	-1	119	43.04	50 50
1417	University Employees	-1	2458	65.83	1 1
1428	Easy sudoku	6	791	34.57	22 13
1474	Charge		21	41.67
1679	Annoying painting tool		104	62.91
1680	Black and white painting		161	58.00	9 9
1682	Deli Deli		382	51.61
1729	Guess the Number	3	954	18.89	1 1
1756	Find The Determinant		169	35.28
1872	Making Book		804	28.89
2018	Clique Separation		71	40.66
2020	Painting Points		140	49.11
2122	Billboard		15	34.69
2126	Panel		22	16.49
2134	Colorful Cubes		2	33.33
2155	Jamcode 2006 (Easy)		124	45.02
2156	Jamcode 2006 (Hard)		22	51.11

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