Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	USERS	ACC %	DIFFICULTY C I
3917	Tree Query	19	34.43
3997	HARDWARE	82	38.36
4074	Compile Error	226	58.71	9 1
4171	DIOPHANTINE	186	42.37
4192	Lucky cities	19	28.57
4193	Quick answer	5	17.50
4196	Internet Service Providers	45	30.32
4205	Highway - MSE07F	8	55.00
4207	Mobile (Again)	18	65.00
4215	Inversions	55	55.87
4245	Place the Numbers I	9	7.98
4304	Pawn	15	48.94
4422	A Dwarf - N Snow Whites	0	0.00
4500	Helms Deep	123	42.18	1 1
4543	Mysterio s Menace	85	39.08
4768	Cool Numbers	205	37.29
4770	Add and Reverse Sums	199	30.04
4788	MCD	97	75.17
4832	Pitagoras y Fermat	28	35.00
4834	Happy Sequence	248	74.51
4854	Primo Kripta	25	36.84
4865	Yupana inca	24	66.67
4869	Flat Land	2	12.00
4872	Good Sequence	239	70.10
5009	Alphabet Arithmetic	77	30.74
5195	Angry Knights	23	30.34
5200	Lsu Football	31	85.71
5228	Old problem	49	30.05
5241	Alchemy	476	54.00
5302	Surprising Strings	28	48.39	17 1
5313	Root of the Problem	188	50.59	1 1
5371	Rational Number	150	43.01
5387	Interesting determinant	51	34.03
5447	Probability One	479	69.51
5779	Interleaved Periodic String	42	47.83
5848	Filip	347	66.96
5871	Grid	80	21.90	1 1
5872	Anagram	884	44.84	1 1
5965	The Element of Surprise	125	49.83
5966	Generalized Chess	45	45.61
6192	H Function	96	36.88
6521	SuperPower	35	50.00
6523	Digital Root Counter	82	60.51
6524	Find the group	54	43.98
6528	Circle Counting	53	50.62	1 1
6645	SBE201 Linked List	161	14.44	9 1
6653	Lexicographic Order 1	19	69.23
6655	Lexicographic Order 3	5	12.20
6656	Lexicographic Order 4	7	42.11
6666	How Many Trees 1	19	33.85