Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
7910	PECOS STRING		28	51.56
7925	Fibonnaci Parity		30	23.68
8060	Cookies Piles	4	4082	70.94	1 4
8094	Treasure map		53	95.89
8144	Game of 3 cards		47	41.03	1 1
8146	Integer Concatenation		10	63.33
8147	Waiting Queue	1	97	31.03	1 17
8149	Intersection	1	130	18.83	17 17
8152	Smart Bunny	1	73	34.87	17 17
8191	Gold distribution	1	18	30.23	17 17
8214	Problem 1		254	15.32
8215	Problem 2	1	582	25.75
8216	Problem 3		114	24.20
8218	Problem 4		84	36.81
8219	Problem 5		207	22.64	17 17
8223	Binary Strings		27	50.79
8224	Perfect Composites		42	18.80
8226	PrePrimes	2	18	35.38	17 17
8227	Fibonacci Terms		47	47.73
8232	Fun With Primes	2	88	39.47	1 1
8264	Find The Pattern		20	22.94
8266	Compare The Strings		102	53.38
8267	Welcome To Code - Easy		22	63.27
8268	Welcome To Code - Hard		24	29.77
8289	Find the unique Number		165	27.15
8293	Bit count	-1	65	37.45
8354	Birthday cake		87	46.29	1 1
8360	Prime After N	-1	314	50.40	1 1
8373	AVION		1443	41.64
8379	count frequency of digits		25	48.33
8395	ZBROJ		398	61.28
8412	Greedy Government		171	53.15
8413	Clean the Forum Posts		442	48.94
8437	MODULUS	1	430	53.50
8440	Verify N queens		52	18.21
8441	Problem 2		22	36.51
8443	Problem 4		32	60.66
8444	Problem 5	1	241	40.05	34 34
8458	ALIGNSUBTRACT		12	18.46
8459	AVERYEASYPROBLEM		71	57.87
8468	AVERAGE	1	1267	38.04	6 6
8492	Intersecting Circles		154	30.08	1 1
8493	Colorful Blocks		197	58.72
8494	Lucky Numbers	2	289	60.58	17 17
8524	Back to High School Physics		433	85.65
8530	Skew Binary	1	81	64.03
8544	Lexicographical ordering	2	139	51.63	1 1
8585	Easy Factorials		19	10.08
8621	Prime Permutations (easy)	1	133	56.95	1 34
8646	A Simple Game	2	1571	24.22	9 9