Sphere Online Judge (SPOJ)

list of tutorial problems (unsolved)

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
28682	Fenwick Trees	33	1146	33.01	9 9
15507	Fear of Three for Ross 200 points		28	68.00	1 1
34213	Favourite Word	1	88	67.25	1 1
11492	Fast Schedule		270	50.65
3371	Fast Power	2	582	31.79	1 17
13153	Fast Division		119	49.57
9595	Fast addition		196	46.22	1 1
12753	Fan Switches	1	236	67.22	1 1
11995	Family Problem		24	24.80
16868	Fairchild Drive		9	65.00
15814	Fair in coinsland !!		29	45.59
19914	Fahrenheit		90	84.62
20162	Fahmy and Fractions		15	41.03
14119	Factorial Sum	1	61	56.69
11989	Factorial large		23	20.26
26911	Factorial base 12	2	66	36.86	9 17
7775	Explicit Formula		1718	57.17	1 1
15815	Exercise		36	32.77
20046	Even Odd Problem		16	13.64
15973	Even Odd Digit	1	56	30.97	17 17
12650	Even and Odd	1	66	35.04
15833	Even and odd		84	73.94
34416	Euler Totient of factorized integer	2	13	53.66	17 34
25056	Escalator	1	41	63.01
26776	Equation Equals Hazards	1	12	43.33	1 17
14884	Equation 2	1	32	39.29	1 17
18716	Equation		26	21.48
12101	Entrée		149	50.23
26844	Enough of GoT		1	1.79
450	Enormous Input Test	36	11683	58.54	5 3
3440	Enormous Input and Output Test	7	1643	50.87	4 8
12075	Encryption		9	31.82
12165	Encrypted String		13	13.83
15979	Encrypt the String		33	92.98
15986	Encrypt the String		39	22.11
34401	Encrypt a message	1	19	75.61
16276	Elections		198	31.14	1
2854	El Dorado	7	776	50.45	15 17
13407	Einstein Ring		9	43.48
27492	Eid Salami	1	84	32.95	1 23
9754	Egypt	2	3270	48.06	4 1
9189	Edit Distance Variant 2		21	60.00
9188	Edit Distance Variant 1		16	40.82
25757	Ecstatic Super Mario		24	52.73
14115	Eating Puzzle	-1	37	27.78
12460	Eat a Good Meal	-1	10	62.96	1 1
14740	Easy!!!		49	50.46
14816	Easy Wavy Routes		30	24.46
20163	Easy Task		72	66.47
1428	Easy sudoku	6	913	36.22	22 13