Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
14205	Big Fibonacci		13	54.84
14206	Graph Cycle Detection	2	85	17.66	26 9
14217	Longest Maze Path	1	5	50.00
14218	Grid Search		2	28.57
14221	Subwords	1	10	25.86
14297	Power of Phi		45	25.47	1 1
14335	Vowels		38	30.66
14336	Packing Boxes	-1	11	24.14
14337	Luhn Algorithm		30	42.17
14394	Mario meets princess Peach		11	25.76
14437	Alphabetic Relation	1	46	29.12	1 1
14439	Compete or Not	1	3	6.58
14442	Three Circle Problem (MEDIUM)		31	32.65
14506	Bitogoras Number	1	43	36.08	17 17
14523	Geeky Retards		4	31.82
14527	Mandatory Attendance		11	85.00
14558	Tic-tac-toe		8	47.83
14667	The Invasion	-1	24	40.45
14669	First Blood		48	35.37
14670	The Revelations	1	71	54.68	1 17
14671	Bombing Run		27	28.00
14672	Freedom!		124	53.63
14720	Check Of Potential		22	62.50
14721	Knives Are Better	1	19	40.00	34 34
14737	Hello Recursion	3	1453	41.63	11 11
14739	Hard to solve		244	63.23	1 1
14740	Easy!!!		47	50.00
14741	Truckloads	2	562	47.86	1 1
14743	Derivation Sequence		60	51.80
14744	Beautiful Numbers	1	499	57.53	9 9
14745	Reverse	1	421	44.63	1 1
14746	Fibonacci Easy		143	47.19
14749	Omar’s Training I		30	45.65
14752	FIZZBUZZ (Easy)		107	58.81
14775	Sum of Powers		22	33.55
14776	Find Right Triangle	1	76	28.08	1 1
14816	Easy Wavy Routes		29	23.91
14817	Add and Multiply		47	24.65
14818	Team Queue		29	24.50
14854	Bribe the Prisoners(Easy)		8	17.74
14867	PAIRS	1	54	59.49	17 17
14868	SERVERS	1	312	52.05	1 17
14869	THE BOARD	1	20	64.52
14870	ALIENS AND COWS		9	58.82
14872	HAIRY FLU		6	14.29
14884	Equation 2	1	29	39.60	1 17
14908	Find The Number		55	55.15
14920	Minimum Step To One	25	1572	23.79	8 7
14931	Make It Simple		201	23.92
14933	GEEK In The Army		49	52.99