Cody5:Easy

Average Problem Difficulty:

Easy problems for Cody 5th Anniversary

Cody5:Easy Master

+50 points

Problem Title	Likes	Solvers
Problem 361. Energy of a photon Created by: AMITAVA BISWAS Tags physics, frequency, energy	14	1462
Problem 44350. Breaking Out of the Matrix Created by: James Tags cody5, whoa, windowing	9	375
Problem 44352. The Top 5 Primes Created by: Peng Liu Tags cody5	7	337
Problem 44358. I Plead the Fifth Created by: goc3 Tags regexp, strings, string	6	424
Problem 44360. Pentagonal Numbers Created by: goc3 Tags series, number, sequence	12	674
Problem 44363. Is this is a Tic Tac Toe X Win? Created by: Doug Hull Tags cody5, noughts and crosses	2	529
Problem 44368. Inscribed Pentagon? Created by: goc3 Tags geometry, circle, radius	2	307
Problem 44369. Circle/Pentagon Overlap Created by: goc3 Tags geometry, circle, radius	1	328
Problem 44370. Octoberfest festival Created by: Andriy Kavetsky Tags fibonacci, cody5	4	495
Problem 44372. Polarisation Created by: Jan Orwat Tags cody5, quantum, angles	4	266
Problem 44375. Missing five Created by: Alfonso Nieto-Castanon Tags cody5	8	377
Problem 44380. ASCII Birthday Cake Created by: @bmtran (Bryant Tran) Tags art, birthday, ascii	10	226
Problem 44384. Find the nearest prime number Created by: Matthew Eicholtz Tags prime numbers, cody5	9	659
Problem 44385. Extra safe primes Created by: Matthew Eicholtz Tags prime numbers, cody5, safe prime	13	753
Problem 44305. 5 Prime Numbers Created by: goc3 Tags prime, primes, string	7	451
Problem 44349. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Created by: James Tags time, cody5	14	954
Problem 44345. MATLAB Counter Created by: Peng Liu Tags cody5, nested function	23	288
Problem 369. Basic electricity in a dry situation Created by: AMITAVA BISWAS Tags physics, current, cody5	8	590
Problem 564. How to subtract? Created by: AMITAVA BISWAS Tags addition, cody5, X-Y	7	1533
Problem 2736. Pernicious Anniversary Problem Created by: Jan Orwat Tags easy, sequences, oeis	13	835
Problem 44306. Is it really a 5? Created by: goc3 Tags regexp, string, number	7	315
Problem 44307. The glass half full Created by: HH Tags contest, cody5	8	258
Problem 44309. Pi Digit Probability Created by: Mehmet OZC Tags pi, string manipulation, histogram	18	839
Problem 44314. A Simple Tide Gauge with MATLAB Created by: AMITAVA BISWAS Tags ocean, prediction, regression	4	391
Problem 44315. Predicting life and death of a memory-less light bulb Created by: AMITAVA BISWAS Tags random, probability, decay	2	334
Problem 44319. Write c^3 as sum of two squares a^2+b^2 Created by: Mehmet OZC Tags number theory, cody5	2	327
Problem 44321. Van Eck's Sequence's nth member Created by: Mehmet OZC Tags integer sequence, cody5, van eck's sequence	12	327
Problem 44334. Sums of Multiple Pairs of Triangular Numbers Created by: James Tags triangular numbers, cody5	1	245
Problem 44338. Recaman Sequence - I Created by: Mehmet OZC Tags integer sequence, cody5	3	317
Problem 44339. Recaman Sequence - II Created by: Mehmet OZC Tags integer sequence, cody5, recaman sequence	1	278
Problem 44342. Spot the First Occurrence of 5 Created by: Peng Liu Tags cody5	2	432

Recent Group Finishers152

Recent Activity

	Matthew Bolyard submitted Solution 14982361 to Problem 44372. Polarisation 22 hours and 1 minute ago
	Matthew Bolyard submitted Solution 14982359 to Problem 44342. Spot the First Occurrence of 5 22 hours and 19 minutes ago
	Olivier Walos submitted Solution 14977326 to Problem 44363. Is this is a Tic Tac Toe X Win? on 13 Jan 2026 at 14:40
	Matthew Bolyard submitted Solution 14975402 to Problem 361. Energy of a photon on 9 Jan 2026 at 19:29
	Pragati submitted Solution 14974315 to Problem 44352. The Top 5 Primes on 7 Jan 2026 at 17:41

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