Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
14867	PAIRS	1	49	58.28	17 17
14854	Bribe the Prisoners(Easy)		7	15.00
14818	Team Queue		26	22.60
14817	Add and Multiply		44	23.94
14816	Easy Wavy Routes		26	22.48
14776	Find Right Triangle	1	74	28.08	1 1
14775	Sum of Powers		19	31.97
14752	FIZZBUZZ (Easy)		102	58.24
14749	Omar’s Training I		27	44.05
14746	Fibonacci Easy		143	47.49
14745	Reverse	1	416	44.70	1 1
14744	Beautiful Numbers	1	492	57.24	9 9
14743	Derivation Sequence		55	50.00
14741	Truckloads	2	500	48.26	1 1
14740	Easy!!!		46	51.89
14739	Hard to solve		242	63.21	1 1
14737	Hello Recursion	3	1305	41.03	13 13
14721	Knives Are Better	1	16	37.50	34 34
14720	Check Of Potential		20	61.54
14672	Freedom!		121	52.31
14671	Bombing Run		27	28.28
14670	The Revelations	1	69	54.01	1 17
14669	First Blood		47	34.57
14667	The Invasion	-1	23	43.37
14558	Tic-tac-toe		7	63.16
14527	Mandatory Attendance		6	66.67
14523	Geeky Retards		3	31.25
14506	Bitogoras Number	1	34	34.06	17 17
14442	Three Circle Problem (MEDIUM)		29	32.38
14439	Compete or Not	1	1	4.23
14437	Alphabetic Relation	1	47	31.08	1 1
14394	Mario meets princess Peach		11	25.76
14337	Luhn Algorithm		30	42.17
14336	Packing Boxes	-1	11	24.56
14335	Vowels		36	31.06
14297	Power of Phi		44	25.97	1 1
14221	Subwords	1	9	24.56
14218	Grid Search		1	20.00
14217	Longest Maze Path		1	16.67
14206	Graph Cycle Detection	2	79	17.31	26 9
14205	Big Fibonacci		12	57.69
14204	Greatest Common Divisor		12	61.90
14199	Prime Summation		9	56.52
14167	Sight Logic		1	0.29
14157	Cut Stick	5	400	38.02	9 13
14135	Right Triangle		45	27.84
14131	Omitting Redundancy	2	11	23.53	17 34
14124	S Number		58	48.87
14121	Save the girlfriend		10	13.83
14120	LED Board		16	27.68