Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
11323	2D-SORT	2	1015	20.68	6 1
11331	Two Squares		67	35.52
11333	Vowels	1	1172	65.18	1 1
11341	TWIN PRIMES		181	18.98
11342	Here be ducks		269	21.38
11356	TWIN PRIMES	1	36	39.52
11365	TSquare TO Square		26	33.25
11366	Zoom Operation		10	38.71
11368	Fibonacci brain	1	471	44.71	9 1
11382	Quadra vs PussyCat		63	51.31
11387	Perfect Cover		88	33.01	1 1
11398	Do You know your Algorithms		440	51.48
11464	Book Shelves(tutorial)		21	15.64
11492	Fast Schedule		267	50.41
11506	ANYTHING FOR ATTENDANCE		48	50.79
11507	SPIRAL RUN	2	374	52.09	1 12
11514	N-ARY TREE	1	86	50.25
11522	CHOCOLATES	1	84	41.16	1 1
11556	Find the minimum no of squares	1	26	35.63
11559	Are you smart enough		26	54.55
11567	Find the missing card		53	45.10
11572	A Famous Music Composer		351	39.76
11581	The Famous Clock		135	56.98
11600	Another Mathematical Problem		100	34.59
11643	Cross dangerous minefields		13	30.77
11722	HELP ABHISHEK		48	50.49
11728	Forest Fires		222	41.30
11731	PATENTES	1	20	55.56
11732	CARTONES CREDECRECIENTES		27	55.68
11788	Ishika and Kashish		2	8.00
11807	Think Different	1	124	41.13	1 1
11821	Combinatorial Sequence	1	29	45.95	1 50
11852	Power with Combinatorics(EASY)	3	90	23.43	26 26
11876	Finding Majority		293	43.62	1 1
11877	Upcoming Demons		24	25.22
11902	Bit Maker		25	21.07
11934	PUT TRINOMO		178	30.89
11936	FIBO BIT	1	19	27.16	1 34
11960	Prime Factorization	4	421	22.61	17 17
11961	Party trouble		70	29.19
11976	Permutation		26	33.90
11980	Sequence		322	29.86
11989	Factorial large		23	20.26
11990	Measuring Water		101	27.19
12071	Point Blank		39	35.29
12072	Playing With Bits		176	54.34
12083	Appetizer		125	51.05
12092	Dessert		117	44.95
12100	Main Course		8	16.67
12101	Entrée		148	50.11