# Problems

1 – 50 of 54
 Problem Title Likes Solvers Difficulty

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

Created by: AMITAVA BISWAS

5

523

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

Created by: AMITAVA BISWAS

2

305

#### Problem 361. Energy of a photon

Created by: AMITAVA BISWAS

12

1302

#### Problem 2736. Pernicious Anniversary Problem

Created by: Jan Orwat

12

774

#### Problem 44370. Octoberfest festival

Created by: Andriy Kavetsky

3

445

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

Created by: AMITAVA BISWAS

4

365

#### Problem 44381. Cache me Outside

Created by: @bmtran (Bryant Tran)

Tags cody5, memoize

5

90

#### Problem 564. How to subtract?

Created by: AMITAVA BISWAS

Tags addition, cody5, X-Y

7

1471

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

Created by: Doug Hull

2

483

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

Created by: Matthew Eicholtz

6

594

Created by: goc3

5

382

Created by: goc3

0

298

#### Problem 44385. Extra safe primes

Created by: Matthew Eicholtz

11

696

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

Created by: James

1

219

#### 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

392

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

Created by: Mehmet OZC

12

305

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

Created by: Mehmet OZC

2

300

Created by: goc3

11

612

Created by: goc3

2

277

Created by: goc3

7

421

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

Created by: James

Tags time, cody5

12

891

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

Created by: Mehmet OZC

15

923

#### Problem 44338. Recaman Sequence - I

Created by: Mehmet OZC

3

285

#### Problem 44375. Missing five

Created by: Alfonso Nieto-Castanon

Tags cody5

8

317

#### Problem 44339. Recaman Sequence - II

Created by: Mehmet OZC

1

249

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

Created by: Doug Hull

Tags cody5

4

108

#### Problem 44372. Polarisation

Created by: Jan Orwat

3

247

#### Problem 44352. The Top 5 Primes

Created by: Peng Liu

Tags cody5

5

290

#### Problem 281. Acid and water

Created by: AMITAVA BISWAS

1

241

Created by: goc3

2

62

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

Created by: AMITAVA BISWAS

5

151

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

Created by: Mehmet OZC

5

114

#### Problem 44344. The 5th Root

Created by: goc3

Tags root, power, cody5

12

531

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

Created by: James

8

321

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

Created by: Mehmet OZC

2

98

Created by: goc3

6

296

Created by: goc3

2

76

#### Problem 44309. Pi Digit Probability

Created by: Mehmet OZC

10

419

#### Problem 44337. Sums of Distinct Powers

Created by: James

6

143

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

Created by: James

5

44

#### Problem 44340. Recaman Sequence - III

Created by: Mehmet OZC

2

76

Created by: goc3

6

174

#### Problem 44380. ASCII Birthday Cake

Created by: @bmtran (Bryant Tran)

Tags art, birthday, ascii

10

211

#### Problem 44345. MATLAB Counter

Created by: Peng Liu

20

239

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

Created by: Peng Liu

Tags speed, cody5

6

68

#### Problem 44374. Tautology

Created by: Jan Orwat

3

40

#### Problem 44382. Parse me a Lisp

Created by: @bmtran (Bryant Tran)

Tags lisp, parse, cody5

4

81

#### Problem 44379. One track five lanes

Created by: Alfonso Nieto-Castanon

Tags cody5

4

62

Created by: HH

13

50

1 – 50 of 54