Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
4181	MELE3	19	610	42.62	20 21
4182	Candy (Again)	2	226	18.48	34 34
4185	Cube		52	35.93
4186	Break a New RSA system	1	137	35.76
4188	Amazing equality		38	13.58
4189	Landing		4	3.64
4191	Sky Code	12	638	27.66	19 26
4194	Another Lucky Numbers	4	137	33.50	17 13
4195	GCD Determinant	1	263	45.60	1 34
4197	Dominoes	4	120	22.98	23 23
4198	Lego	5	177	25.40	24 22
4200	Hamster flight	13	1150	45.40	5 13
4201	Coder Ratings	26	1387	35.94	15 18
4202	Brackets Parade		232	44.26
4203	Double Queue	1	76	43.72	17 17
4204	Showstopper	1	83	21.90	17 34
4206	Fast Maximum Matching	30	1958	29.21	22 19
4210	Fast Maximum Matching		10	41.94
4211	Fast Maximum Flow		16	22.22
4212	Another Longest Increasing Subsequence Problem		11	48.15
4225	Payment System		30	66.67
4226	Japan	30	1748	23.29	16 19
4227	"Shortest" pair of paths	3	207	39.82	23 17
4235	Wandering Queen	25	840	15.11	23 19
4259	Pilots	34	1644	31.95	17 20
4273	Train TimeTable	7	422	33.97	14 8
4275	rotate it		40	55.70
4278	Battlefield		5	45.83
4300	Rectangles	175	26711	49.91	5 8
4302	(K,N)-Knight	3	311	24.80	14 24
4303	Dice	13	925	15.72	11 19
4305	Drilling	3	96	17.98	17 34
4306	The way to Bytemountain	1	29	41.25	34 34
4307	Stamps		27	41.56
4308	Byteantean towns		55	24.78
4309	Circular game		32	19.89
4310	Permutacja	4	159	40.47	12 17
4311	Quasi-template		54	33.92
4318	Catch Fish	11	493	32.84	21 26
4324	The fate of the pineapple		40	28.41
4329	Counting K-Rectangle	4	387	30.01	20 28
4343	Empty Boxes	26	3554	66.08	2 13
4350	Giá trị lớn nhất 3	14	409	23.22	28 19
4354	Snowflakes	1	817	25.06	9 21
4361	Connected Points		9	52.17
4378	Twofive		63	32.26
4390	Cards shuffing	2	117	26.48	26 21
4407	Counting Arborescence		100	34.02
4408	Build a Fence	37	12246	44.78	4 5
4409	Circle vs Triangle	1	59	19.77

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