Sphere Online Judge (SPOJ)

list of tutorial problems (unsolved)

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
12208	The Chain Reaction		20	36.92
15090	The Brain-Folk Computer		2	69.33
14869	THE BOARD	1	23	67.65
18938	The angry professor		36	24.26
4073	The 3n plus 1 problem	3	4135	35.14	20 14
7414	Thank you Chief ;)		233	46.80	1 1
13089	Tetravex	1	140	52.69	17 17
10484	testingC		143	79.10
17823	Test Xor	-2	26	52.46
17831	Test Binary to Hexadecimal Converting		27	80.00	1 1
11349	Tertiary Calculator		6	42.11
23692	Temperature		48	21.89	1 1
14051	Teddy Bear Picnic	1	66	39.29
14818	Team Queue		31	25.81
25310	TCX	-1	11	14.88
18040	Tau In World Final		8	10.32
25046	TAREA SENCILLA	-1	18	66.67	1 1
11319	TARANIAMITKAUSHIK	-1	57	47.66
19220	Tarang and number of routes		18	27.16
34541	Tanushera And His Car		70	22.56	1 1
13675	Tanks		215	51.55	1 1
16249	Takeshis Maze		44	54.55
7272	Take Away Game	1	120	18.64	17 34
18529	Tabs	1	6	53.33
4301	Tables	14	6629	54.01	2 3
11095	Symmetric or not		135	38.16
12608	Switch	1	33	81.82
15969	SWEET PAIRS		23	42.86
5302	Surprising Strings		28	48.39	17 1
6521	SuperPower		35	50.00
2912	Super Primes	1	279	36.92
16037	Super Over	1	359	42.98	17 17
2907	Super Factor Sum		83	27.23
25189	Sunday Drive		9	28.57
453	Sums in a Triangle (tutorial)	8	1800	42.94	14 12
15977	Sums Decompositions		10	52.17
14039	Summer Play		19	92.68
14945	Summation of Multiples (hard)		13	18.82
25978	Sum to Zero		28	45.56
26131	Sum the Decimal-part I	1	82	42.46	17 1
25142	Sum of Two Squares		15	23.38
26586	Sum of the smallest K elements of an array	-1	218	26.72	1 1
10724	Sum of Tetranacci numbers (easy)		254	63.52	17 1
12348	Sum of Subsets	3	300	35.09	12 6
14775	Sum of Powers		22	33.55
25590	Sum of fractions	1	12	61.90
1392	Sum of Factors	2	346	13.45	1 1
10492	Sum of factorial		69	50.57
34417	Sum of divisors	1	7	60.00
35773	Sum of Divisors	2	58	22.22	1 1

list of tutorial problems (unsolved)

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