Sphere Online Judge (SPOJ)

list of tutorial problems (unsolved)

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
21722	Problems 1: Calculate A and B	-2	47	33.77	1 1
21681	Find Unchanged Position		23	93.94
21675	VEGETABLE SHOPKEEPER 1		24	50.00
21648	LCM Sum(Hard)		28	22.92	17 34
21647	String Jutsu		17	64.52
21646	War Message	1	18	42.55	1 1
21598	BASE FIGHT	1	28	31.87	1 1
21591	Cumulative Sum Query	20	7535	48.02	5 5
21583	Print ♥		11	50.00
21571	Prime Land and Next Prime number	1	14	17.81	17
21570	Triangle Under a Circle		18	66.67
21569	Find out Defect Ball		12	45.95
21568	Shopkeeper Order		19	84.00
21567	Add		11	35.56
21566	Dictionary		7	9.86
21565	Count the miscall		11	17.81
21564	Mission Ananta Jalil		10	100.00	17 17
21563	Annie’s 18th Birthday		13	66.67
21561	Amazing Subset		96	32.92
21560	Dr. Sheldon cooper and Pseudo code	1	10	41.94	1 1
21559	Khoj The Search		15	66.67
21558	Carl Friedrich Gauss		19	61.29
21556	Square		101	33.07
21523	A multiplied B equal to N		1	7.89
21459	General Joke	1	124	47.35	1 1
21442	Lowest Common Ancestor	33	2242	36.62	13 12
21410	A Gift for You 2		35	20.22
21408	2x2 Subgrid Sum Problem (hard)		4	9.09
21392	Prana and The Series	1	45	19.13	17 34
21307	Arithmetic Expressions		18	38.75	17 1
21298	Divisibility Check		16	24.27	17 1
21182	Sum of Digits		32	67.69
21168	At random		306	38.47
21099	Palindrome Query	2	33	47.76	9 26
21098	HardDisk Drive		25	56.82
21097	XYZ-Strings		17	29.63
21088	Its a Bit Game	2	30	29.63	17 17
21056	Vowel again		16	89.47
21048	Universal Radius	1	125	53.01	1 17
20976	Sum	3	807	61.64	3 3
20974	The Patriotic Indian	1	36	32.37	1 1
20866	National Day Vietnam 2 9 2014		11	47.22
20854	The world and Contients		101	57.01
20853	Rotations		107	49.39
20847	Students Database		24	52.54
20771	Simplest Pattern Search with Spaces		45	48.28
20767	Simplest Pattern Search	-1	85	39.24	1 1
20766	nikkiNXN		12	30.00
20765	Friendship Bond	1	14	36.51
20763	Journey of nikki	1	20	32.81

list of tutorial problems (unsolved)

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