# Problems

1 – 50 of 54
 Problem Title Likes Solvers Difficulty

#### Problem 369. Basic electricity in a dry situation

Created by: AMITAVA BISWAS

5

525

#### Problem 44315. Predicting life and death of a memory-less light bulb

Created by: AMITAVA BISWAS

2

307

#### Problem 361. Energy of a photon

Created by: AMITAVA BISWAS

12

1325

#### Problem 2736. Pernicious Anniversary Problem

Created by: Jan Orwat

12

775

#### Problem 44370. Octoberfest festival

Created by: Andriy Kavetsky

3

450

#### Problem 44381. Cache me Outside

Created by: @bmtran (Bryant Tran)

Tags cody5, memoize

5

91

#### Problem 44314. A Simple Tide Gauge with MATLAB

Created by: AMITAVA BISWAS

4

366

#### Problem 564. How to subtract?

Created by: AMITAVA BISWAS

7

1475

Created by: goc3

5

387

#### Problem 44363. Is this is a Tic Tac Toe X Win?

Created by: Doug Hull

2

484

#### Problem 44384. Find the nearest prime number

Created by: Matthew Eicholtz

6

598

Created by: goc3

0

299

#### Problem 44385. Extra safe primes

Created by: Matthew Eicholtz

11

698

#### Problem 44334. Sums of Multiple Pairs of Triangular Numbers

Created by: James

1

221

#### Problem 44307. The glass half full

Created by: HH

Tags contest, cody5

7

243

#### Problem 44342. Spot the First Occurrence of 5

Created by: Peng Liu

Tags cody5

2

396

#### Problem 44321. Van Eck's Sequence's nth member

Created by: Mehmet OZC

12

306

Created by: goc3

11

616

Created by: goc3

7

425

#### Problem 44319. Write c^3 as sum of two squares a^2+b^2

Created by: Mehmet OZC

2

301

Created by: goc3

2

278

#### Problem 44311. Number of Even Elements in Fibonacci Sequence

Created by: Mehmet OZC

15

946

#### Problem 44338. Recaman Sequence - I

Created by: Mehmet OZC

3

286

#### Problem 44349. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.

Created by: James

Tags time, cody5

13

905

#### Problem 44339. Recaman Sequence - II

Created by: Mehmet OZC

1

250

#### Problem 44375. Missing five

Created by: Alfonso Nieto-Castanon

Tags cody5

8

336

#### Problem 44372. Polarisation

Created by: Jan Orwat

3

249

#### Problem 44364. Is this a valid Tic Tac Toe State?

Created by: Doug Hull

Tags cody5

4

110

#### Problem 44365. An asteroid and a spacecraft

Created by: AMITAVA BISWAS

5

152

#### Problem 281. Acid and water

Created by: AMITAVA BISWAS

1

244

Created by: goc3

2

78

#### Problem 44352. The Top 5 Primes

Created by: Peng Liu

Tags cody5

5

295

#### Problem 44344. The 5th Root

Created by: goc3

Tags root, power, cody5

12

534

Created by: goc3

2

63

#### Problem 44310. Digit concentration in Champernowne's constant

Created by: Mehmet OZC

5

115

#### Problem 44350. Breaking Out of the Matrix

Created by: James

8

328

Created by: goc3

7

299

#### Problem 44337. Sums of Distinct Powers

Created by: James

6

145

#### Problem 44341. Hexagonal numbers on a spiral matrix

Created by: Mehmet OZC

2

112

#### Problem 44340. Recaman Sequence - III

Created by: Mehmet OZC

2

78

#### Problem 44309. Pi Digit Probability

Created by: Mehmet OZC

10

436

Created by: goc3

6

176

#### Problem 44380. ASCII Birthday Cake

Created by: @bmtran (Bryant Tran)

Tags art, birthday, ascii

10

211

#### Problem 44353. Group-wise Euclidean distance

Created by: Peng Liu

Tags speed, cody5

6

70

#### Problem 44345. MATLAB Counter

Created by: Peng Liu

20

240

#### Problem 44374. Tautology

Created by: Jan Orwat

3

41

#### Problem 44316. Pandigital Multiples of 11 (based on Project Euler 491)

Created by: James

5

46

#### Problem 44382. Parse me a Lisp

Created by: @bmtran (Bryant Tran)

Tags lisp, parse, cody5

6

84

#### Problem 44347. Ned's queens

Created by: HH

Tags contest, cody5

4

67

#### Problem 44379. One track five lanes

Created by: Alfonso Nieto-Castanon

Tags cody5

4

64

1 – 50 of 54