Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	CODE	USERS	ACC %
296	Teamwork is Crucial	TWORK	39	33.86
297	Aggressive cows	AGGRCOW	889	46.13
300	Cable TV Network	CABLETV	181	44.55
301	Booklets	BOOK	123	45.45
302	Count on Cantor	CANTON	2113	62.17
303	The Unstable Cube	UCUBE	34	30.08
309	The Room Pattern	RATTERN	35	16.67
318	Pythagorean Legacy	PITPAIR	23	32.31
325	The Tall Windmills	WINDMILL	94	48.50
327	Platon and Socrates	PLATON	36	14.38
328	Bishops	BISHOPS	1385	31.48
329	Calls	CALLS	90	28.46
332	Hard Question	HARDQ	81	33.33
334	The Philosophical Dispute	PHDISP	48	46.15
336	Exchange Operations	EOPERA	50	23.02
338	Roads	ROADS	360	31.05
339	Recursive Sequence	SEQ	291	60.29
344	Poker	POKER	383	39.72
345	Mixtures	MIXTURES	626	36.88
346	Bytelandian gold coins	COINS	1627	28.91
347	Lazy Cows	LAZYCOWS	112	32.44
348	Expedition	EXPEDI	226	32.18
349	Around the world	AROUND	66	33.33
350	Landscaping	LANDSCAP	77	33.60
351	Ha-noi!	HAN01	274	46.38
359	Alpha Centauri Tennis	ACT	428	44.37
362	Ignore the Garbage	IGARB	254	44.90
364	Pocket Money	LISA	325	32.91
365	Phidias	PHIDIAS	295	47.40
366	Farmer	FARMER	156	22.87
367	Empodia	EMPODIA	98	29.98
368	Cobbled streets	CSTREET	588	45.79
369	Math I	MATH1	69	28.98
370	Ones and zeros	ONEZERO	337	26.48
371	Boxes	BOXES	188	33.86
372	The Benefactor	BENEFACT	409	41.11
373	Greedy island	GREED	142	28.80
374	Count maximum matrices	MATRIX	154	24.35
375	Query on a tree	QTREE	228	18.48
376	A concrete simulation	ACS	695	36.12
377	Taxi	TAXI	280	27.32
379	Ambiguous Permutations	PERMUT2	1836	57.75
380	Bullshit Bingo	BINGO	460	34.35
381	106 miles to Chicago	CHICAGO	723	41.41
382	Decorate the wall	DECORATE	179	37.72
383	European railroad tracks	EUROPEAN	151	30.25
384	Any fool can do it	FOOL	274	35.21
385	Game schedule required	GAME	125	29.83
386	Help the problem setter	HELP	77	47.83
387	Travelling tours	TOURS	165	55.09