Sphere Online Judge (SPOJ)

list of tutorial problems (unsolved)

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
26131	Sum the Decimal-part I	1	82	42.46	17 1
4171	DIOPHANTINE		186	42.37
2018	Clique Separation		77	42.35
11110	Easy Longest Increasing Subsequence	72	6721	42.25	4 6
26687	Guess The Maximum	2	112	42.23	1 9
25306	Easy Marks	4	468	42.22	1 1
4500	Helms Deep		123	42.18	1 1
6656	Lexicographic Order 4		7	42.11
11349	Tertiary Calculator		6	42.11
16508	Divisors		21	42.05
14667	The Invasion	-1	27	41.94
21560	Dr. Sheldon cooper and Pseudo code	1	10	41.94	1 1
22309	How to multiply		9	41.94
14737	Hello Recursion	3	1539	41.89	11 11
3378	Mirrored Pairs	2	3976	41.84	5 1
18489	Catch Me If You Can	1	338	41.81	1 1
14394	Mario meets princess Peach		13	41.67
8373	AVION		1443	41.64
32445	COUNT JUMPS	1	92	41.63	4 1
11522	CHOCOLATES	1	85	41.58	1 1
11807	Think Different	1	125	41.49	1 1
11728	Forest Fires		223	41.49
14337	Luhn Algorithm		31	41.46
4907	Most Common Letter	1	228	41.39	1 1
22790	Bloxorz	1	9	41.38
24316	Un segundo después		31	41.33
11097	Easy Powers		69	41.30
1023	Arranging Dominoes	1	676	41.30	1 1
15303	Triangle	-1	44	41.23	1 1
5899	A simple equation	3	292	41.20	9 17
9339	Contains Prime		19	41.18
20162	Fahmy and Fractions		15	41.03
17622	Calculate your GPA		489	40.98
30840	Ada and Database		21	40.96	17 17
10364	TREE SHAPES		26	40.91
12167	Fibonacci starters		33	40.91
12184	Help the statistics department	2	41	40.91	9 17
19384	Name Sorting		30	40.91
12801	Browsing History		51	40.88
9188	Edit Distance Variant 1		16	40.82
15585	Butters solves Recurrences 450 pts		26	40.79
10742	Hello, World!		122	40.63
19415	Numeral Abbreviation Notation	1	11	40.62
13880	GO FOR DIAMONDS	2	91	40.58	17 1
16694	Goodness of Numbers	1	38	40.54
26699	Ditto and String	-1	194	40.50	1 1
3256	Rock Skipping		17	40.48
12395	Maximizing the equation		84	40.47
14721	Knives Are Better	1	21	40.38	34 34
22378	Mobile Company 1		32	40.38

list of tutorial problems (unsolved)

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