Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
7910	PECOS STRING		22	47.17
7925	Fibonnaci Parity		28	24.11
8060	Cookies Piles	4	4069	70.96	1 4
8094	Treasure map		49	95.73
8144	Game of 3 cards		42	40.95	1 1
8146	Integer Concatenation		5	50.00
8147	Waiting Queue	1	93	29.83	1 17
8149	Intersection	1	127	18.66	17 17
8152	Smart Bunny	1	71	32.16	17 17
8191	Gold distribution	1	16	46.15	17 17
8214	Problem 1		249	15.20
8215	Problem 2	1	578	25.48
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
8224	Perfect Composites		40	19.47
8226	PrePrimes	1	13	42.86	17 17
8227	Fibonacci Terms		42	52.17
8232	Fun With Primes	2	86	39.46	1 1
8264	Find The Pattern		15	18.56
8266	Compare The Strings		98	52.67
8267	Welcome To Code - Easy		18	59.52
8268	Welcome To Code - Hard		8	45.00
8289	Find the unique Number		158	26.75
8293	Bit count	-1	62	36.48
8354	Birthday cake		80	44.81	1 1
8360	Prime After N	-1	305	50.00	1 1
8373	AVION		1438	41.55
8379	count frequency of digits		23	50.00
8395	ZBROJ		390	60.80
8412	Greedy Government		166	53.16
8413	Clean the Forum Posts		436	48.64
8437	MODULUS	1	421	53.23
8440	Verify N queens		50	17.73
8441	Problem 2		19	51.28
8443	Problem 4		27	57.14
8444	Problem 5	1	229	40.58	34 34
8458	ALIGNSUBTRACT		7	15.56
8459	AVERYEASYPROBLEM		66	56.94
8468	AVERAGE	1	1261	38.01	6 6
8492	Intersecting Circles		133	29.34	1 1
8493	Colorful Blocks		191	58.04
8494	Lucky Numbers	1	273	60.68	17 17
8524	Back to High School Physics		426	85.48
8530	Skew Binary	1	78	63.86
8544	Lexicographical ordering	2	121	50.18	1 1
8585	Easy Factorials		13	6.78
8621	Prime Permutations (easy)	1	126	57.24	1 34
8646	A Simple Game	2	1563	24.18	9 9