Cody5:Hard

Hard problems for Cody 5th Anniversary.

Cody5:Hard Master

+50 points

Problem Title	Likes	Solvers
Birthday cake Created by: Matthew Eicholtz Tags geometry, cody5:hard	6	57
Parse me a Lisp Created by: @bmtran (Bryant Tran) Tags cody5, lisp, parse	2	61
Cache me Outside Created by: @bmtran (Bryant Tran) Tags cody5, memoize	2	70
One track five lanes Created by: Alfonso Nieto-Castanon Tags cody5	3	43
Five-dimensional maze Created by: @bmtran (Bryant Tran) Tags cody5, maze, graph theory	2	36
Five steps to enlightenment Created by: Alfonso Nieto-Castanon Tags cody5, logic, indexing	4	35
The sliding puzzle: 3D Created by: HH Tags sliding, puzzle, 15	7	32
Tautology Created by: Jan Orwat Tags regular expressions, cody5	3	38
Inscribed Pentagon? 2 Created by: goc3 Tags five, pentagon, inscribed	1	61
An asteroid and a spacecraft Created by: AMITAVA BISWAS Tags star war, spacecraft, projectile	4	124
Is this a valid Tic Tac Toe State? Created by: Doug Hull Tags cody5	3	90
5th Time's a Charm Created by: goc3 Tags five, charm, fail	5	153
Group-wise Euclidean distance Created by: Peng Liu Tags cody5, speed	5	56
Ned's queens Created by: HH Tags cody5, contest	2	50
The 5th Root Created by: goc3 Tags power, root, five	8	456
Pair Primes Created by: Mehmet OZC Tags prime numbers, integers, cody5	4	64
Hexagonal numbers on a spiral matrix Created by: Mehmet OZC Tags hexagonal numbers, spiral matrix, big integer	1	69
Recaman Sequence - III Created by: Mehmet OZC Tags recaman sequence, cody5	0	61
Sums of Distinct Powers Created by: James Tags distinct powers, cody5, binary	5	120
Pandigital Multiples of 11 (based on Project Euler 491) Created by: James Tags cody5, pandigital, projecteuler	4	39
"Cody" * 5 == "CodyCodyCodyCodyCody" Created by: Peng Liu Tags cody5, string, multiplication	6	188
Number of Even Elements in Fibonacci Sequence Created by: Mehmet OZC Tags fibonacci, big number, even number	3	370
Digit concentration in Champernowne's constant Created by: Mehmet OZC Tags champernowne's constant, big number, cody5	4	100
Acid and water Created by: AMITAVA BISWAS Tags exponential decay, fluid mixture, cody5	1	203

Cody5:Hard

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