Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
23006	The Next Number	2	16	22.89	17 17
23432	Largest Product		16	30.43	17 1
23436	Look and Say	1	16	56.67	1 1
25143	Varying Focus	1	16	35.42	17 17
25162	Polling		16	44.25
25231	1RETO 11 MARATON	-1	16	32.73
28737	Pen Pine Apple - Apple Pen		16	66.67	1 1
9339	Contains Prime		15	47.50
10834	Travelled Distance		15	50.00
11053	Array Minimum		15	20.00
12455	Order		15	66.00
13949	Binary Input and Output	1	15	34.41
15971	UNIQUE ALPHABETS		15	76.00
18643	Odd		15	47.73
19575	Galvin and Time		15	60.71
20046	Even Odd Problem		15	25.71
21056	Vowel again		15	73.91
21307	Arithmetic Expressions		15	43.55	17 1
21568	Shopkeeper Order		15	82.61
21570	Triangle Under a Circle		15	65.22
23226	Can you do it		15	45.00	1 1
23537	Kripto		15	58.62	1 1
23691	Next Round		15	9.30
25046	TAREA SENCILLA	-1	15	70.83	1 1
25191	Palindrometer		15	32.38
25211	BG and WOW Cities!!	3	15	48.48	17 12
26293	helloworld2	-1	15	42.37
34396	Do not print 0	1	15	49.06	1 1
34479	Möbius function zero distribution	4	15	41.82	6 17
34808	Crosswords	-1	15	46.73
35772	Query	1	15	22.83	1 17
3443	Netiquette		14	40.48
3917	Tree Query		14	39.02
8264	Find The Pattern		14	18.18
8648	Square number game		14	37.04
9261	Cúcara Mácara		14	47.14
9573	Spot the largest string		14	19.75
10494	Celebration	-1	14	10.69	1 1
13386	Rotations		14	31.15
14039	Summer Play		14	97.06
14116	Funky Strings	1	14	36.59
17395	Computer Graphics		14	69.23
17629	SLEEPIN	-2	14	75.00	1
18669	Fun with flooring factorial		14	25.00
19966	BOB AND BANANAS	1	14	31.67	17
21298	Divisibility Check		14	22.22	17 1
21646	War Message	1	14	39.02	1 1
22789	Breaking RSA		14	87.50
25128	Truth Table	-1	14	50.00
25589	Movie stars	1	14	45.45	1 1