Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
4409	Circle vs Triangle	1	59	19.77
7746	Cocircular Points		59	16.57	42 17
7857	Tower Game (Hard)		59	15.07	34 34
14122	Inverse of Recurrence Problem With a Square Root	3	59	49.56	23 45
16134	Save the cows!	5	59	14.08	1 6
16178	Change		59	10.13
16556	Triangle	2	59	47.87	17 17
26187	Captain Claw		59	25.16	17 12
31893	Fibonacci and Easy GCD	7	59	26.71	23 32
34356	Ludic Numbers (medium)	5	59	30.46	36 39
1464	Editor II		58	18.59
2649	Weird sorting	1	58	26.10	1 34
3896	Maximal Independent Set	2	58	25.20	34 42
3965	Minimax Triangulation		58	34.60
4410	Repair the Door		58	22.49
7970	Jumping Beans	1	58	26.80	17 17
8323	Triangle equality		58	43.85
10594	Decoding Number Stations with Dr Whooves	2	58	26.56	9 26
11517	GAMING ARENA	1	58	39.30
12322	NSquare Sum ( Medium )		58	44.31	34 17
13588	One X LIS	2	58	19.77	17 17
15850	Game	1	58	42.11	1 34
20848	Interesting Game		58	45.09
21173	String fertilization		58	45.23
27102	Swap Space	1	58	34.20	1 17
28180	Sanvi Hates Palindrome	5	58	34.15	13 13
183	Assembler circuits		57	30.69
1803	Fold		57	41.94
1878	Farmers Cattle	1	57	37.62	34 34
2418	Flying Frogs		57	37.43
2855	Forest		57	12.20
3372	Round Table	1	57	45.00
3390	Tribe Council	1	57	22.07	34 34
5197	Differential Diagnosis	1	57	23.72
6576	Divide and Conquer	2	57	15.96	17 26
7297	Placing Coins on a Grid	2	57	33.09	17 17
8075	Sequence	3	57	27.73	39 39
10082	Comparing Answers		57	12.59
11274	Lights and Switches	1	57	33.46	17 34
12436	The One-Dimensional Pool Table	1	57	40.87	1 34
12560	External Falling Objects	2	57	39.00	26 17
14891	Good Debugging	4	57	43.50	21 17
15553	Hamsters	2	57	33.18	30 30
16063	Hackers	6	57	23.48	48 48
16138	Deconnecting		57	38.04	1 1
17443	Magical Bus Journey	2	57	31.80	9 9
25810	Divisibility Test	10	57	12.93	24 26
38602	Unique Sequence	6	57	44.59	6 8
202	Rockets	-1	56	12.18	34 34
278	Bicycle		56	13.14	34 1

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