Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
115	Family	2	65	12.43	34 26
116	Intervals	3	333	31.66	17 17
118	Rhombs		74	45.45
119	Servers		104	20.45
120	Solitaire	4	329	25.32	30 21
121	Timetable		50	15.31
122	Voracious Steve	1	236	31.34
123	Paying in Byteland	1	396	49.03	1 17
130	Rent your airplane and make money	69	2631	28.70	17 17
131	Square dance		280	52.52
132	Help R2-D2!	2	610	30.50	27 24
134	Phony Primes	1	171	18.91	26 26
135	Men at work	1	247	37.93	30 34
136	Transformation		73	37.69
137	Partition	13	725	38.47	21 20
138	Election Posters	35	1651	26.10	18 22
139	The Long and Narrow Maze		200	20.89
140	The Loner		151	22.70
142	Johnny and the Glue		98	37.28
145	Aliens	1	379	30.44	50 50
146	Fast Multiplication Again		34	22.65
147	Tautology	1	446	42.25
148	Land for Motorways	1	193	42.27	17 17
149	Fencing in the Sheep	3	89	12.08	34 23
150	Where to Drink the Plonk?	1	480	35.56
151	The Courier	23	772	36.61	21 21
153	Balancing the Stone		306	35.85
154	Sweet and Sour Rock	54	2788	50.94	13 17
160	Choosing a Palindromic Sequence		91	33.33
174	Paint templates		54	40.67
175	Polygon		66	24.61
176	Sum of one-sequence	4	620	33.52	1 21
177	AB-words	1	13	1.22	50 50
178	Road net	7	2137	49.41	8 6
179	Word equations	1	171	24.97	17 17
180	How to pack containers		93	39.74
181	Scuba diver	68	2880	27.33	17 17
182	Window		39	29.38
183	Assembler circuits		55	30.73
184	Automatic Teller Machines		180	32.70
185	Chase	1	200	26.84	1 34
186	The lightest language	1	95	24.39	17 34
187	Flat broken lines	1	93	43.75	17 17
188	Rectangles	1	170	28.52	17 17
196	Musketeers	3	433	32.32	17 30
199	Empty Cuboids	-1	139	35.08
200	Monodigital Representations	1	155	32.48	34 34
201	The Game of Polygons	1	241	39.54	1 17
202	Rockets	-2	60	13.42	34 34
203	Potholers	19	1822	27.28	17 14

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