Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
1842	Lineland Airport		32	18.87
3310	Serial Numbers	1	32	29.06	34 17
3640	Hanoi Subway System Construction		32	41.75
4309	Circular game		32	19.89
4669	Cross Mountain Climb Extreme	1	32	22.91	34 50
5015	Decode the Castanets		32	43.14
6988	Beer Machines	5	32	18.72	43 37
7777	National Treasure		32	38.30
8056	Regex Edit Distance	2	32	40.62	34 42
8108	POLYU		32	27.65
8427	Permutation Game		32	41.05
8627	I2C		32	25.79
10071	Working at the Restaurant		32	37.78
10440	Friends		32	20.25
10461	The magical escape		32	53.33
10820	Obsession	4	32	23.98	39 39
12004	Cousin Wars	2	32	18.18	26 26
12107	All Possible Barns	1	32	27.89	34 34
14032	Summer Game	2	32	42.02	17 17
17539	Cows Language	3	32	40.54	21 26
26913	SUPER CELL	1	32	19.34	17 17
900	Split Windows		31	56.90
2902	Candy IV		31	51.25	50 34
4069	Morphing is Fun		31	23.08
5154	Cryptography Reloaded (Act II)		31	27.89
5649	Divide Polygon	3	31	21.43	9 34
6917	Catch Sheep	2	31	22.07	34 34
7960	Multiplicative Palindrome		31	31.55
8326	Leaky containers		31	41.84
8894	Double Time	1	31	47.62	17 1
8971	LQDNUMBERS		31	36.44
9190	Perfect Maze		31	1.73
9242	B Beware, the end of the world	1	31	24.63	17 17
9443	Trial of Doom	1	31	51.52	17 34
11202	Number Theory	-1	31	31.03	42 34
11723	HELP ABHISHEK(version-II)		31	62.76
12370	Generating Alien DNA	1	31	18.18	34 34
12713	Strings		31	24.04	1 1
12981	Fences	3	31	24.28	26 30
13918	String Queries		31	28.57
13989	Helping Susy	1	31	28.92	17 17
14862	Union Laser	3	31	48.55	23 17
14905	Zig when you zag	4	31	33.33	30 38
14924	King Graffs Tolls	3	31	40.00	34 34
15148	play with prime numbers (II)	4	31	22.55	26 17
15734	California Jones and the Gate to Freedom	1	31	56.52	34 34
19125	Hexadecimal value of Pi	2	31	58.06	26 34
25889	Drawing Lines	3	31	20.16	23 17
28287	Mayonnaise Arrow	3	31	10.18	26 13
31396	Binary Game Reloaded		31	49.33	1 34

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