# Problems

1 – 50 of 4,843
 Problem Title Likes Solvers Difficulty

#### Problem 1975. Kaggle: Reverse Game of Life - Zoo of Stills and Oscillators

Created by: Richard Zapor

Tags life, lcm, conv2

3

12

Created by: Richard Zapor

Tags urlwrite, unzip

1

11

#### Problem 1999. Bleed non-zeros to the right using REGEXP, and that sort of cheatcodess...

Created by: J-G van der Toorn

0

23

Created by: Ted

2

4

#### Problem 54109. Get the n-th rand number with given seed

Created by: J Guo

Tags easy

1

25

#### Problem 2166. Concatenate a successive power matrix in a column matrix

Created by: Florian

1

47

#### Problem 220. Signal filtering

Created by: Nikolai

1

13

#### Problem 221. Boolean algebra

Created by: Tomasz

3

8

#### Problem 225. Subdivide the Segment

Created by: Roger Stafford

2

9

#### Problem 2254. Possible Opponents Matrix for single-elimination tournament

Created by: Paul Berglund

3

10

#### Problem 2083. Independent direction vectors of a plane

Created by: Marcel

0

16

Created by: Ted

Tags math

0

95

#### Problem 1170. Count the Number of Undirected Cycles in a Graph

Created by: Joseph Kirk

1

11

#### Problem 1339. Travelling Salesman Problem (TSP)

Created by: Alex P.

0

18

#### Problem 1729. Can you beat the lottery again (for hardcore coder) ?

Created by: Jean-Marie Sainthillier

Tags random, lottery

7

12

Created by: Frequency Domain

1

14

#### Problem 1747. Get me! v3

Created by: Frequency Domain

Tags hack, get me!

4

17

#### Problem 1752. Get me! v4 (Cody hacking challenge)

Created by: Frequency Domain

Tags hack, get me!

2

17

#### Problem 1763. Primes for Large N: 2^30, System Memory Limit

Created by: Richard Zapor

1

17

#### Problem 1769. singularity 2.0 (easier)

Created by: Alfonso Nieto-Castanon

Tags hack

3

16

#### Problem 1846. Free Fall analytical solution (Chapra 2012 textbook Example 1.1)

Created by: Robert Canfield

Tags aoe2074

1

21

#### Problem 1854. Factorial: Unlimited Size : java.math

Created by: Richard Zapor

0

37

#### Problem 1866. Usage of mkdir and copyfile

Created by: Richard Zapor

Tags mkdir, copyfile, pwd

1

16

#### Problem 1875. GJam: 2013 China Event: Cannon Angle

Created by: Richard Zapor

Tags physics, gjam, roots

2

18

#### Problem 1902. GJam 2014 China Rd A: Read Phone Number (Large)

Created by: Richard Zapor

2

9

#### Problem 1916. GJam 2013 Veterans: Hedge

Created by: Richard Zapor

1

18

#### Problem 368. Find S-parameters of the circuit

Created by: Nikolai

1

37

#### Problem 40912. Rotate counterclockwise a matrix 90 deg with left-bottom element

Created by: Derik Zhou

Tags rotate

1

86

#### Problem 418. Blood test?

Created by: AMITAVA BISWAS

Tags medical

1

50

#### Problem 42324. Accessing value of variable whose name is stored in another variable as string.

Created by: srujana vantikommu

1

42

#### Problem 42777. GJam March 2016 IOW: Polynesiaglot Small

Created by: Richard Zapor

Tags gjam, iow

2

14

#### Problem 42778. GJam March 2016 IOW: Polynesiaglot Medium

Created by: Richard Zapor

1

7

#### Problem 42805. GJam 2016 Rd1A: Rank and File (small)

Created by: Richard Zapor

0

10

#### Problem 42806. GJam 2016 Rd1A: Rank and File (Large)

Created by: Richard Zapor

Tags find, mod, gjam

1

10

#### Problem 42817. Pipeline

Created by: LY Cao

2

2

#### Problem 42937. Project Euler: Problem 14, Longest Collatz sequence

Created by: Riam Su

2

18

#### Problem 2390. Fair Scoring for Cody

Created by: Nicholas Howe

Tags cody, mtree, scoring

1

6

#### Problem 2409. Find the Connecting Path

Created by: Nishat Savat

0

10

#### Problem 2424. Latest Question On Cody

Created by: rifat

1

23

Created by: goc3

1

24

#### Problem 2448. Back to the future

Created by: Óscar

Tags reflection

2

12

#### Problem 2449. Back to the future II

Created by: Óscar

Tags reflection

0

11

#### Problem 2450. Back to the Future III

Created by: Óscar

Tags reflection

1

10

#### Problem 2470. self description 2.0

Created by: rifat

Tags hack

0

13

#### Problem 2485. Initialize a varible with an integer value from a another variable which is assigned with a character value.

Created by: Peter Babu

0

13

#### Problem 255. Spiraling out of control....

Created by: Matt Fig

Tags math, spiral

1

8

#### Problem 2562. Juggling

Created by: Jan Orwat

6

11

#### Problem 2641. Dispatch and collect

Created by: Guillaume

1

13

#### Problem 2670. Error handling

Created by: Matthew Eicholtz

1

51

Created by: goc3

2

58

1 – 50 of 4,843