Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
11976	Permutation		23	33.91
12454	Permutation		45	44.86
11387	Perfect Cover		83	32.25	1 1
8224	Perfect Composites		40	19.47
28737	Pen Pine Apple - Apple Pen		16	66.67	1 1
7910	PECOS STRING		22	47.17
4304	Pawn		13	43.75
8931	PATHS( no source code limit)	1	46	53.89
11731	PATENTES		18	48.72
37644	Password Cracking		30	29.06
3318	Pascals Travels		41	34.04
16065	Pascal Triangle		20	93.33
35989	Pascal Triangle		7	27.66
11961	Party trouble		68	29.19
28741	Partial Primes	1	8	54.84
9514	Parsing URL	1	23	34.41
40750	Parity Issue		1	10.00
26316	PARESOI		14	26.15	1 1
2126	Panel		26	16.72
23937	Panda and sets		1	3.12
11121	Palindromic Cricketer		21	67.44
25191	Palindrometer		15	32.38
21099	Palindrome Query	2	27	48.18	9 26
13934	Palindrome Pair		12	20.73
14867	PAIRS	1	49	58.28	17 17
26556	Pair Divisible	1	27	20.81	34 34
2020	Painting Points		145	49.86
14336	Packing Boxes	-1	11	24.56
8755	Overlapping Squares	2	118	34.76	17 1
10208	Overestimate		132	38.18
9819	Out of place	1	137	64.52	17 17
12455	Order		15	66.00
24950	Orden Secuencia		10	52.63
32047	Optimal BST		132	92.27
14131	Omitting Redundancy	2	11	23.53	17 34
14749	Omar’s Training I		27	44.05
5228	Old problem		47	29.69
19289	Ohani And Unsolvable Math	1	29	39.29	1 17
25210	Odd Count		23	75.61
18643	Odd		16	50.00
12523	Nuts Frenzy		89	16.38	1 17
24250	Numero Palindromo		21	62.32	1 1
24318	Número Alternantes		22	37.31
19415	Numeral Abbreviation Notation	1	5	28.00
11239	Number Theory (Easy)	2	92	37.04	17 26
12456	NUMBER SERIES		77	43.75
22803	Number Of ways		9	46.88
21862	Number of Paths		22	48.00
34418	Number of divisors of factorial	1	9	62.96
28561	Number of divisors	8	135	11.16	20 20