Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
14205	Big Fibonacci		12	53.33
14206	Graph Cycle Detection	2	83	17.46	26 9
14217	Longest Maze Path		1	16.67
14218	Grid Search		1	20.00
14221	Subwords	1	10	25.86
14297	Power of Phi		43	25.08	1 1
14335	Vowels		36	31.06
14336	Packing Boxes	-1	11	24.56
14337	Luhn Algorithm		30	42.17
14394	Mario meets princess Peach		11	25.76
14437	Alphabetic Relation	1	47	31.08	1 1
14439	Compete or Not	1	1	4.23
14442	Three Circle Problem (MEDIUM)		29	32.38
14506	Bitogoras Number	1	34	33.81	17 17
14523	Geeky Retards		3	31.25
14527	Mandatory Attendance		7	80.00
14558	Tic-tac-toe		7	63.16
14667	The Invasion	-1	23	40.70
14669	First Blood		47	34.57
14670	The Revelations	1	69	54.01	1 17
14671	Bombing Run		27	28.00
14672	Freedom!		121	52.31
14720	Check Of Potential		20	61.54
14721	Knives Are Better	1	16	38.14	34 34
14737	Hello Recursion	3	1390	41.49	13 13
14739	Hard to solve		243	63.29	1 1
14740	Easy!!!		46	51.89
14741	Truckloads	2	519	47.77	1 1
14743	Derivation Sequence		56	50.38
14744	Beautiful Numbers	1	498	57.48	9 9
14745	Reverse	1	419	44.65	1 1
14746	Fibonacci Easy		143	47.49
14749	Omar’s Training I		27	44.05
14752	FIZZBUZZ (Easy)		102	58.24
14775	Sum of Powers		18	31.29
14776	Find Right Triangle	1	74	27.41	1 1
14816	Easy Wavy Routes		26	21.54
14817	Add and Multiply		44	23.94
14818	Team Queue		26	22.60
14854	Bribe the Prisoners(Easy)		7	15.00
14867	PAIRS	1	49	58.17	17 17
14868	SERVERS	1	312	52.05	1 17
14869	THE BOARD	1	18	62.07
14870	ALIENS AND COWS		6	50.00
14872	HAIRY FLU		6	20.00
14884	Equation 2	1	28	38.68	1 17
14908	Find The Number		55	55.15
14920	Minimum Step To One	25	1545	23.92	8 7
14931	Make It Simple		198	23.63
14933	GEEK In The Army		46	51.91