Sphere Online Judge (SPOJ)

list of tutorial problems (unsolved)

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
509	6-Kolorowanie Grafów Planarnych		85	20.52
9078	Graph basics concepts		22	20.47
13385	Balanced Bracket Expression		23	20.42
35791	KJ and street lights		25	20.39
12078	Picking Weights		10	20.29
11989	Factorial large		23	20.26
19956	Connecting Networks		13	20.24
19787	Mr Toothless and His Number Theory		9	20.22
21410	A Gift for You 2		35	20.22
33305	Single Source Shortest Path		197	20.08	17 1
14854	Bribe the Prisoners(Easy)		10	20.00
17401	Interview Time		5	20.00
35772	Query	1	15	20.00	1 17
11203	Auris Love		34	19.69
13211	Progression	1	76	19.51	1 6
13883	ZEROES IN RANGE	2	60	19.49	26 42
6667	How Many Trees 2		14	19.48
9654	Prime Count		69	19.23
12077	Secret Code		8	19.23
11100	Fun with Fibonacci Series	5	308	19.20	21 27
25163	The n Days of Christmas		28	19.18	1 1
13839	CAMPANAS2		21	19.17
21745	Mushrooms	4	133	19.14	17 17
24249	Binary Again	1	70	19.14	5 1
21392	Prana and The Series	1	45	19.13	17 34
1729	Guess the Number	3	996	19.13	1 1
11062	Binary search	18	4990	19.11	7 5
25703	MAYOIU		27	19.11
9598	Get me correct	-1	71	19.05	1 1
11341	TWIN PRIMES		181	19.02
25227	2RETO 10 MARATON	-1	14	18.99
7215	No Red Lights Pl !!		28	18.92
14945	Summation of Multiples (hard)		13	18.82
8224	Perfect Composites		42	18.80
8149	Intersection	1	131	18.80	17 17
25057	Threebonacci		13	18.75
3250	The Seven Percent Solution		206	18.67
21746	Rooks and pawns		86	18.64
7272	Take Away Game	1	120	18.64	17 34
22308	Short form of New Year		76	18.58	1 1
9438	Celebrity Split		8	18.57
19271	GRAVITY	2	90	18.54	17 17
11464	Book Shelves(tutorial)		23	18.52
18035	Aya the new contestant	-2	6	18.52	17 34
8458	ALIGNSUBTRACT		12	18.46
21741	Pipage		86	18.41
25246	RETO 4 MARATON 10		11	18.35
10496	Two Face on the high way		31	18.33
8440	Verify N queens		52	18.21
18031	Quest for bananas!		26	18.18

list of tutorial problems (unsolved)

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