Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	USERS	ACC %	DIFFICULTY C I
10587	Enemies	35	34.07
10589	King	65	28.00
10607	Delivery	34	27.36
10621	MONO	22	16.44
10640	The Wild Wizard	96	26.68	1 1
10645	The Rail Network Renovation	94	33.85
10647	Divide And Conquer	11	19.35
10648	DUGDUG	48	25.63
10667	PASIJANS	65	47.85
10675	GENIJALAC	46	50.52
10683	DRIVE	1	2.50
10701	The Lazy Gamer	16	13.61
10799	Happiness at the lowest cost	11	4.65
10800	GAME	21	12.64
10809	Unlock it !	83	30.99
10814	Unique Paths	123	46.00
10877	Decoys and Diversions	45	18.03	9 17
10883	Customs	14	31.25
10919	I Hate Parenthesis	92	29.14	17 1
10945	Foodie Golu	61	28.31
11054	Discords Dilemma	23	27.52
11090	Large banner	27	33.33
11105	Email ID	74	22.92	1 1
11117	Restacking haybales 2012	172	52.86
11157	The Great Escape	77	44.96
11179	Korra in the Spirit World	26	41.24
11267	Arnook Defensive Line	37	27.62
11276	Adventure	44	37.36
11334	Lucifer Sort	4	11.11
11355	SQUARE TO SQUARE	21	19.47
11384	Zoom Operation	4	20.00
11405	Just Like the Good Old Days	81	40.14
11407	Tied Down	19	38.33
11440	Unlock it ! Part 2	45	21.09
11444	MAXOR	103	36.23	9 26
11458	Ninja	122	15.44
11460	Planning Poker	254	41.84
11474	Totient Game	40	36.40
11482	Count on a trie	46	29.66	42 50
11493	Goto & labels	63	30.14
11496	Just the distance	15	10.76	17 17
11521	Dominant Strings	71	34.51
11540	Training	19	43.14
11576	A Famous King’s Trip	20	9.72
11580	A Famous Game	379	33.94	28 28
11603	Polynomial f(x) to Polynomial h(x)	75	57.18
11718	Boa viagem, Roim	70	16.16
11723	HELP ABHISHEK(version-II)	31	42.64
11769	Kind and gently	101	54.86
11777	Easy Sequence!	154	25.75	17 17