Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
11333	Vowels	1	1172	65.18	1 1
22260	Natural Number Sum		38	65.22
22749	Fill the board		15	65.22
23436	Look and Say	1	23	65.22	1 1
41442	Sleepwork		12	65.22
24250	Numero Palindromo		26	65.38	1 1
25230	5RETO 10 MARATON (Calentamiento)	-1	32	65.38
14199	Prime Summation		14	65.52
23537	Kripto		18	65.52	1 1
20164	Vowels		34	65.62
19575	Galvin and Time		16	65.71
3727	Lucky Number	3	787	65.76	1 1
1417	University Employees	-1	2481	65.79	1 1
9465	Spectrum of colours	-1	56	65.81	50 50
7483	C style constants		26	66.06
12455	Order		22	66.25
9151	Kids Love Candies		399	66.28
9113	Digibomb!		55	66.38
15737	Number Magic I		134	66.38
34194	1+1	-3	66	66.39	1 1
20163	Easy Task		72	66.47
1394	Dividing Spaces		25	66.67
4865	Yupana inca		24	66.67
19402	SleepWalker		10	66.67
20040	Circle Hazard-1		22	66.67
20160	Amr and Math		39	66.67	1
21559	Khoj The Search		15	66.67
21563	Annie’s 18th Birthday		13	66.67
21570	Triangle Under a Circle		18	66.67
25046	TAREA SENCILLA	-1	18	66.67	1 1
25239	RETO 1 MARATÓN 11 (Calentamiento)		8	66.67
34372	Massimo Comune Divisore		8	66.67	1 1
34399	Largest prime factor	3	28	66.67	1 1
41435	Sleepwork		14	66.67
5848	Filip		347	66.96
15813	Transform the String		45	67.12
25725	DB & GCD	2	152	67.16	1 26
12753	Fan Switches	1	236	67.22	1 1
34213	Favourite Word	1	88	67.25	1 1
26886	Print it All	1	17	67.31	1 1
12282	Word or number (easiest 2)	-1	222	67.41
14869	THE BOARD	1	23	67.65
21860	Chances of Win		16	67.65
21182	Sum of Digits		32	67.69
14970	Rock Paper Scissors Fox		48	67.90
11247	Plus Within a diamond	1	294	67.95
15507	Fear of Three for Ross 200 points		28	68.00	1 1
21864	Next Largest In a Range		16	68.00
3313	Software Bugs		144	68.09	1 1
23840	Sorry Sorry	-6	111	68.34	1 1