Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
1392	Sum of Factors	2	340	13.33	1 1
30409	Generalized Fibonacci		101	13.20	17 17
31138	Just Sum	-1	8	13.19
22123	Destroy Enemy Camp		3	13.04
21566	Dictionary		4	12.90
28561	Number of divisors	8	141	12.26	20 20
4869	Flat Land		2	12.00
27043	Subset Pattern		33	11.98	1 1
28105	MCQ		5	11.63
34625	Maximum K in a Window		8	11.54
12511	CUBE ROOT	1	47	11.44	34 17
19431	COMPRESSED WORDS-2		6	11.32
25190	Balloons		24	10.95
10494	Celebration	-1	14	10.69	1 1
20750	Remove Duplicates 3		23	10.64
30784	Ada and Pear		9	10.64
10331	Sample		39	10.55
19915	Leapyear		12	10.43
25310	TCX	-1	5	10.42
28010	Copy Cat		17	10.42
16669	The Wicked Employer		3	10.20
16031	3 Fibonacci sum		28	10.17
7785	ARRAY(EASY)		98	10.08
40750	Parity Issue		1	10.00
25754	Best Two		32	9.88	1 1
27306	Detecting End Of File - Tutorial		4	9.76
25213	Counting Is Easy		42	9.57	17 17
4190	A plus B	2	96	9.46	1 1
13238	SAMPLE PROB		5	9.38
14934	So Close!		10	9.38
23691	Next Round		15	9.30
6655	Lexicographic Order 3		3	9.09
10552	KAM		7	9.09
27299	Find Log	1	125	9.01	1 1
13510	Just multiply !		8	9.00
11040	UJ Test 1		11	8.97
36341	Sum Input-Output Practice		113	8.93
31288	Too Late		55	8.62	1 17
23543	Networking lover Poltu!	1	10	8.48
34664	LCM Game		43	8.40	1 1
527	Just for Fun (Easy)		108	8.22
13951	DRAWING NUMBERS	-1	6	8.22	1 1
21523	A multiplied B equal to N		1	7.89
28123	Modular Multiplication		5	7.69
25008	New Currency Shopping	1	11	7.66	34 17
27363	Decryption Key		2	7.41
33792	String	1	20	7.34
10211	The Collatz Sequence	-1	71	7.30	1
27068	Leaf	1	66	7.25	9 1
8585	Easy Factorials		13	6.75