Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
5873	Rnumber	1	10	28.00	17 17
5874	Square	-1	45	21.19	1 1
5899	A simple equation	3	263	39.90	9 17
5900	Decreasing Strings	-1	83	48.77
5965	The Element of Surprise		122	49.32
5966	Generalized Chess		42	44.14
6192	H Function		95	36.90
6501	Median	5	254	24.94	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
6651	Snapper Chain	1	65	45.30
6653	Lexicographic Order 1		11	61.29
6654	Lexicographic Order 2	1	43	33.95	17 17
6655	Lexicographic Order 3		3	9.68
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		127	48.07
7129	Happy Telephones	1	253	49.23
7136	Blowing Fuses		90	26.72
7207	Alchemy	1	2232	39.88	1 1
7236	The next odd number	1	468	47.60	1 1
7237	Biggest !	1	447	15.96	1 17
7262	Nth greater value		101	51.43
7272	Take Away Game	1	118	20.22	17 34
7273	Rank of a Permutation		87	49.08
7274	Fibonacci Representation	1	24	39.08
7287	Making Palindrome		12	44.44
7411	Reward for the hard work		79	53.93
7413	Tile game		56	47.95
7414	Thank you Chief ;)		225	46.05	1 1
7431	Vikram & Betaal	1	52	68.48	1 1
7483	C style constants		22	65.00
7663	Return SIGSEGV	2	1208	39.39	26 26
7667	Minimum and maximum numbers		260	33.30
7672	Salsa Dance		167	34.12
7673	Making your own Calculator		13	15.69
7674	Easy Game		45	52.46
7675	Squares		74	35.39
7677	Frequent Values		15	16.67
7775	Explicit Formula		1712	57.09	1 1
7856	Tower Game (Easy)		33	39.10
7858	Upper Right King (Easy)	1	75	35.81	1 9
7863	Four Chips (Easy)		9	40.74
7865	Regular expressions (Easy)		12	38.18
7869	Boards (Easy)		3	15.38
7885	Happy Numbers II - Trial		279	49.68	34 17
7893	Weekdays		23	52.54