Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
6192	H Function		95	36.90
6334	Success	-3	854	43.92	12 13
6501	Median	5	256	25.07	17 17
6521	SuperPower		33	50.83
6523	Digital Root Counter		82	60.51
6524	Find the group		47	41.53
6528	Circle Counting		47	49.02	1 1
6645	SBE201 Linked List		157	14.19	9 1
6651	Snapper Chain	1	66	44.86
6653	Lexicographic Order 1		11	61.29
6654	Lexicographic Order 2	1	43	33.95	17 17
6655	Lexicographic Order 3		3	8.57
6656	Lexicographic Order 4		4	62.50
6666	How Many Trees 1		17	31.75
6667	How Many Trees 2		12	36.11
6677	Rope Intranet		129	48.35
6703	SBE201 Palindromes		6	37.50
6705	Card Game		7	27.91
7129	Happy Telephones	1	253	48.98
7136	Blowing Fuses		91	26.90
7207	Alchemy	1	2233	39.89	1 1
7215	No Red Lights Pl !!		23	17.75
7236	The next odd number	1	469	47.63	1 1
7237	Biggest !	1	448	15.97	1 17
7262	Nth greater value		101	51.43
7267	Basics		3	57.14
7272	Take Away Game	1	117	19.86	17 34
7273	Rank of a Permutation		87	49.08
7274	Fibonacci Representation	1	24	39.08
7287	Making Palindrome		12	44.44
7289	Reverse text		262	35.75
7411	Reward for the hard work		79	53.93
7413	Tile game		56	47.95
7414	Thank you Chief ;)		226	46.15	1 1
7431	Vikram & Betaal	1	52	68.13	1 1
7483	C style constants		22	65.00
7663	Return SIGSEGV	2	1208	39.36	26 26
7667	Minimum and maximum numbers		317	22.82
7672	Salsa Dance		171	33.62
7673	Making your own Calculator		13	15.69
7674	Easy Game		45	52.46
7675	Squares		74	35.39
7677	Frequent Values		14	15.65
7775	Explicit Formula		1714	57.13	1 1
7785	ARRAY(EASY)		99	10.07
7856	Tower Game (Easy)		33	39.10
7858	Upper Right King (Easy)	1	75	35.81	1 9
7863	Four Chips (Easy)		10	20.00
7865	Regular expressions (Easy)		12	38.18
7869	Boards (Easy)		3	15.38