Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	CODE	USERS	ACC %
6450	PP numbers	MB1	413	40.04
6470	Finding the Kth Prime	TDKPRIME	695	24.54
6471	Printing some primes	TDPRIMES	521	23.39
6477	Bowling	BOWLING1	292	28.49
6478	Hamster Flight 2	HAMSTER2	11	18.46
6479	The Very Greatest Common Divisor	VGCD	50	9.98
6488	Printing some primes (Hard)	PRIMES2	20	27.12
6489	Finding the Kth Prime (Hard)	KPRIMES2	18	13.24
6499	Breaking Chocolates	BCHOCO	41	30.66
6500	Counting Diameter	DCOUNT	27	36.90
6503	Travelling Salesman Again !	TSPAGAIN	110	40.24
6517	Farmer Sepp	JOCHEF	174	21.56
6556	N DIV PHI_N	NDIVPHI	259	45.44
6560	N DIV PHI_N (Hard)	NDIVPHI2	102	22.06
6562	Esferas	PRUBALL	157	58.43
6576	Divide and conquer	DIVCON	20	17.89
6578	Segment Tree	SEGTREE	8	17.39
6622	Islands and Hotel Chains	HCHAINS	21	12.05
6624	Snowball Game	SNOWGAME	32	30.29
6650	Consecutive sequence	SEQ6	165	20.09
6652	Skiers	SKIVER1	2	20.00
6665	Easy Longest Common Substring	ELCS	70	24.84
6678	Load Testing	GCJ101C	152	60.84
6681	Điểm trên cạnh hình chữ nhật - HRASTOVI	MRECT1	81	50.57
6690	A - Comparison Expressions	BOCOMP	44	33.78
6691	Picking Up Chicks	GCJ101BB	160	63.43
6692	B - Esperanto Lessons	BOLESSON	51	60.20
6693	C - Karaoke	BOKO	4	21.05
6694	D - Playing with Marbles	BOMARBLE	1004	69.46
6695	E - Publish of Perish	BOPERISH	534	40.82
6700	Make it Smooth	GCJ101AB	58	21.57
6706	Making Chess Boards	CT101CC	20	20.16
6709	Multiplying by Rotation	MBR	71	48.19
6711	Transform a sequence	BLOCK	26	50.91
6717	Two Paths	TWOPATHS	56	18.39
6720	Paper Fold	PFOLD	11	14.69
6726	Goldbach graphs	GOLDG	20	60.00
6731	Coeficientes	COEF	610	45.62
6732	Camels	CT14E	63	41.29
6738	Nice Quadrangles	CHEFMAY	156	43.56
6767	Sequence Function	SEQFUN	11	23.94
6772	Happy Coins	HC	842	56.04
6773	Dinostratus Numbers	DINONUM	70	17.53
6779	Can you answer these queries VII	GSS7	145	26.90
6803	Absurd prices	ABSURD	246	26.22
6804	Cheating or Not	CHEATING	6	16.67
6805	Counter attack	CATTACK	134	69.50
6818	Capital City	CAPCITY	168	31.97
6819	Yet Another Assignment Problem	ASSIGN5	4	10.81
6823	Seller Bob	CFJUN21	55	22.16