Cody5:Hard

Hard problems for Cody 5th Anniversary.

Cody5:Hard Master

+50 points

Problem Title	Likes	Solvers
Problem 44387. Birthday cake Created by: Matthew Eicholtz Tags geometry, cody5:hard	6	66
Problem 44382. Parse me a Lisp Created by: @bmtran (Bryant Tran) Tags cody5, lisp, parse	2	65
Problem 44381. Cache me Outside Created by: @bmtran (Bryant Tran) Tags cody5, memoize	2	72
Problem 44379. One track five lanes Created by: Alfonso Nieto-Castanon Tags cody5	3	47
Problem 44378. Five-dimensional maze Created by: @bmtran (Bryant Tran) Tags cody5, maze, graph theory	2	36
Problem 44377. Five steps to enlightenment Created by: Alfonso Nieto-Castanon Tags cody5, logic, indexing	5	35
Problem 44376. The sliding puzzle: 3D Created by: HH Tags sliding, puzzle, 15	7	34
Problem 44374. Tautology Created by: Jan Orwat Tags regular expressions, cody5	3	39
Problem 44367. Inscribed Pentagon? 2 Created by: goc3 Tags five, pentagon, inscribed	1	65
Problem 44365. An asteroid and a spacecraft Created by: AMITAVA BISWAS Tags star war, spacecraft, projectile	4	130
Problem 44364. Is this a valid Tic Tac Toe State? Created by: Doug Hull Tags cody5	3	94
Problem 44359. 5th Time's a Charm Created by: goc3 Tags five, charm, fail	5	157
Problem 44353. Group-wise Euclidean distance Created by: Peng Liu Tags cody5, speed	5	58
Problem 44347. Ned's queens Created by: HH Tags cody5, contest	2	50
Problem 44344. The 5th Root Created by: goc3 Tags power, root, five	8	483
Problem 44343. Pair Primes Created by: Mehmet OZC Tags prime numbers, integers, cody5	4	68
Problem 44341. Hexagonal numbers on a spiral matrix Created by: Mehmet OZC Tags hexagonal numbers, spiral matrix, big integer	0	71
Problem 44340. Recaman Sequence - III Created by: Mehmet OZC Tags recaman sequence, cody5	0	68
Problem 44337. Sums of Distinct Powers Created by: James Tags distinct powers, cody5, binary	5	126
Problem 44316. Pandigital Multiples of 11 (based on Project Euler 491) Created by: James Tags cody5, pandigital, projecteuler	4	40
Problem 44313. "Cody" * 5 == "CodyCodyCodyCodyCody" Created by: Peng Liu Tags cody5, string, multiplication	6	191
Problem 44311. Number of Even Elements in Fibonacci Sequence Created by: Mehmet OZC Tags fibonacci, big number, even number	4	455
Problem 44310. Digit concentration in Champernowne's constant Created by: Mehmet OZC Tags champernowne's constant, big number, cody5	4	105
Problem 281. Acid and water Created by: AMITAVA BISWAS Tags exponential decay, fluid mixture, cody5	1	215

Recent Group Finishers23

Recent Activity

	Karl Ezra Pilario submitted Solution 2194345 to Problem 44310. Digit concentration in Champernowne's constant on 5 Apr 2020 at 22:50
	V P submitted Solution 2179967 to Problem 44343. Pair Primes on 28 Mar 2020 at 16:08
	Nikolaos Nikolaou submitted Solution 2146076 to Problem 44364. Is this a valid Tic Tac Toe State? on 1 Mar 2020
	avner yakov submitted Solution 2134092 to Problem 44311. Number of Even Elements in Fibonacci Sequence on 19 Feb 2020
	Nikolaos Nikolaou submitted Solution 2131294 to Problem 281. Acid and water on 17 Feb 2020