Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
7136	Blowing Fuses		90	26.72
11852	Power with Combinatorics(EASY)	3	90	23.67	26 26
34293	Flight		90	79.33
34295	Road Network	1	90	86.43
8911	FREE PATHS		89	40.26
12523	Nuts Frenzy		89	16.38	1 17
32445	COUNT JUMPS	1	89	41.07	4 1
2626	RegExp Master	-1	88	36.73	34 17
12510	JUMPING DORA		88	36.13
13880	GO FOR DIAMONDS	2	88	40.98	17 1
19271	GRAVITY	2	88	18.34	17 17
34213	Favourite Word	1	88	67.25	1 1
7273	Rank of a Permutation		87	49.08
244	Internally Stable Sets		86	17.78
2459	Magic Program		86	61.63
8232	Fun With Primes	2	86	39.46	1 1
11514	N-ARY TREE	1	86	50.25
1279	Run Length Decoding		85	37.42	1 1
4543	Mysterio s Menace		85	38.85
15299	Digit Dilemma		85	43.78
34098	Queues		85	60.67
34137	Memory Game 1		85	39.92	17 17
19914	Fahrenheit		84	84.24
509	6-Kolorowanie Grafów Planarnych		83	20.28
5900	Decreasing Strings	-1	83	48.77
10601	Spiral numbers	1	83	51.90	9 9
11387	Perfect Cover		83	32.03	1 1
21741	Pipage		83	18.93
34277	Dynamic Network		83	68.42
2627	The Longest Chain		82	60.26
6523	Digital Root Counter		82	60.51
8749	Waiting for Easter		82	33.44
11522	CHOCOLATES	1	82	40.51	1 1
12466	Closest Points		82	58.10	17 1
18143	Kimo and Divisors		82	26.34
20748	Remove Duplicates		82	58.33
8354	Birthday cake		81	44.29	1 1
16108	BOSSACT	2	81	54.12
20767	Simplest Pattern Search	-1	81	39.15	1 1
34099	IITKESO207PA1Q3		81	50.62
8439	VijayAndAjith		80	69.29
11096	Triple Zeros		80	34.56
21746	Rooks and pawns		80	18.02
27492	Eid Salami	1	80	33.03	1 23
2907	Super Factor Sum		79	27.38
7411	Reward for the hard work		79	53.93
12395	Maximizing the equation		79	39.84
14206	Graph Cycle Detection	2	79	17.25	26 9
26803	Balloons for All	-2	79	29.86	1 1
29747	Lucky 7, Unlucky 13	3	79	42.15	6 6