Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
12607	Missing one		22	88.37
22794	Combination Lock		23	88.46
15751	Kth Largest Candy Packet		52	88.51	34
15754	Changing Words		8	88.89
18644	Reverse Precedence		5	88.89
19402	SleepWalker		4	88.89
14040	Winter Shopping		19	89.36
19734	Smallest	-1	64	89.43	1 1
22444	Chemical X		31	90.20
13356	Count Zero	1	65	90.42	9 17
14038	Autumn Leaves (Easy)		12	90.48
12458	Unique strings		148	90.69	1 1
5037	Fibonacci Counting System	-1	27	90.70
32046	Knapsack Problem	1	148	90.96	1 1
32105	Maybe a Minimum Spanning Tree		122	91.04
32045	Coin Game		168	91.39
21681	Find Unchanged Position		16	92.00
19701	Calculation	-1	97	92.11	1 1
32047	Optimal BST		132	92.27
32106	Simple Dijkstras algorithm		130	92.41
22797	Automated Dispatch		10	92.86
32108	Lexicographic Permutations	1	133	93.01
16065	Pascal Triangle		20	93.33
32048	Largest bunch of zeros		157	93.35
12112	SecondProblem		60	93.81	1 1
15979	Encrypt the String		30	94.00
32685	Calculator		227	94.03	17 1
32107	Simple Dijkstras algorithm again	1	124	95.72	1 1
8094	Treasure map		49	95.73
32109	Relaying the roads		133	95.99
14039	Summer Play		14	97.06
14036	Spring Iceblocks	1	16	98.00
14037	Late Summer Battle		2	100.00
15584	Cartman the Lazy Kid 350 pts	1	8	100.00	17 17
16510	Baza		9	100.00
21564	Mission Ananta Jalil		6	100.00	17 17
22431	IVANA		2	100.00
24952	Cantidad de dígitos para 3 numeros		7	100.00
25509	RETO DOC 7		4	100.00
25530	RETO 06 DOC		8	100.00
37166	Predicting the spread of viruses (EASY)	1	6	100.00	1 1