Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	USERS	ACC %	DIFFICULTY C I
5966	Generalized Chess	42	44.14
6192	H Function	95	36.90
6521	SuperPower	33	50.83
6523	Digital Root Counter	82	60.51
6524	Find the group	47	41.53
6528	Circle Counting	47	49.02	1 1
6645	SBE201 Linked List	157	14.21	9 1
6653	Lexicographic Order 1	11	61.29
6655	Lexicographic Order 3	3	9.68
6656	Lexicographic Order 4	4	62.50
6666	How Many Trees 1	17	31.75
6667	How Many Trees 2	12	36.11
6677	Rope Intranet	127	48.07
6703	SBE201 Palindromes	5	35.71
6705	Card Game	7	27.91
7136	Blowing Fuses	90	26.72
7215	No Red Lights Pl !!	23	17.75
7262	Nth greater value	101	51.43
7267	Basics	3	57.14
7273	Rank of a Permutation	87	49.08
7287	Making Palindrome	12	44.44
7289	Reverse text	262	35.75
7411	Reward for the hard work	79	53.93
7413	Tile game	56	47.95
7414	Thank you Chief ;)	225	46.05	1 1
7483	C style constants	22	65.00
7667	Minimum and maximum numbers	260	33.30
7672	Salsa Dance	167	34.12
7673	Making your own Calculator	13	15.69
7674	Easy Game	45	52.46
7675	Squares	74	35.39
7677	Frequent Values	15	16.67
7775	Explicit Formula	1712	57.09	1 1
7785	ARRAY(EASY)	98	10.08
7856	Tower Game (Easy)	33	39.10
7863	Four Chips (Easy)	9	40.74
7865	Regular expressions (Easy)	12	38.18
7869	Boards (Easy)	3	15.38
7885	Happy Numbers II - Trial	279	49.68	34 17
7893	Weekdays	23	52.54
7910	PECOS STRING	22	47.17
7925	Fibonnaci Parity	28	24.11
8094	Treasure map	49	95.73
8144	Game of 3 cards	42	40.95	1 1
8146	Integer Concatenation	5	50.00
8214	Problem 1	249	15.20
8216	Problem 3	109	22.61
8218	Problem 4	78	34.97
8219	Problem 5	203	22.16	17 17
8223	Binary Strings	27	51.56