Cody

Problems

1 – 50 of 4,677
Problem Title
Likes
Solvers
Difficulty

Problem 1745. Get me!

Created by: Frequency Domain

Tags hack

1

21

Problem 1120. Visualization of experimental data across a surface

Created by: Carl

Tags matrix, data

2

30

Problem 1339. Travelling Salesman Problem (TSP)

Created by: Alex P.

Tags games, travelling salesman

0

10

Problem 1382. Schwarzschild radius

Created by: Claudio Gelmi

Tags black holes

1

36

Problem 2502. Filter British English into American English

Created by: Peter Cook

Tags regexp, string, string manipulation

3

23

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

Created by: Joseph Kirk

Tags graph theory, cycles, undirected graphs

0

11

Problem 1445. Number of vertices of a hypercube

Created by: Claudio Gelmi

Tags hypercube

1

75

Problem 1456. Beads on a Necklace (Convex Hulls)

Created by: Ned Gulley

Tags geometry

2

43

Problem 1484. Conjunctive Normal Form

Created by: G K

Tags math, logic

1

14

Problem 1490. Shifted Hexagonal Tiling Dots in a Circle

Created by: Yaroslav

Tags geometry, grid, hexagon

1

21

Problem 1496. Disjunctive Normal Form

Created by: G K

Tags math, logic

2

15

Problem 150. chirp again

Created by: AMITAVA BISWAS

Tags chirp

0

31

Problem 1509. Fast Fourier transform algorithm

Created by: Bob Levy

Tags algorithms

0

10

Problem 169. Set a Soroban Abacus

Created by: @bmtran (Bryant Tran)

Tags math, linear algebra, logic

2

31

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

Created by: Jean-Marie Sainthillier

Tags random, lottery, ><A HREF="https://bing.com">Sai</A>

7

12

Problem 1743. What? Paradox?

Created by: Frequency Domain

Tags hack, paradox

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!

1

17

Problem 1753. Calculate FFT

Created by: Frequency Domain

Tags fft

2

16

Problem 1761. Primes Faster for Large N

Created by: Richard Zapor

Tags primes, find, logical

1

30

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

Created by: Richard Zapor

Tags primes, logical, memory management

1

16

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

19

Problem 1854. Factorial: Unlimited Size : java.math

Created by: Richard Zapor

Tags factorial, java, bigdecimal

0

35

Problem 1866. Usage of mkdir and copyfile

Created by: Richard Zapor

Tags mkdir, copyfile, pwd

1

14

Problem 1875. GJam: 2013 China Event: Cannon Angle

Created by: Richard Zapor

Tags physics, gjam, roots

2

18

Problem 1892. LIFO Validation

Created by: Paul Berglund

Tags lifo

1

10

Problem 1901. GJam 2014 China Rd A: Read Phone Number

Created by: Richard Zapor

Tags string, sequence, gjam

1

10

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

Created by: Richard Zapor

Tags string, sequence, gjam

2

8

Problem 1916. GJam 2013 Veterans: Hedge

Created by: Richard Zapor

Tags gjam, vector processing

1

17

Problem 1937. Get input and output variable names

Created by: Sky Sartorius

Tags regexp

2

14

Problem 1969. Self-Description

Created by: Alfonso Nieto-Castanon

Tags self-referential, xkcd

3

25

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

Created by: Richard Zapor

Tags life, lcm, conv2

3

12

Problem 1995. Loading/Expanding a ZIP file from File Exchange

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

Tags vector, dynamic regular expressions

0

20

Problem 2029. Convert vector datasets to plot with imagesc instead of scatter

Created by: Ted

Tags scatter, grid, imagesc

1

4

Problem 2050. remove nans fast

Created by: Ted

Tags nan, speed optimization

1

31

Problem 2057. persistant sum

Created by: Ted

Tags math

0

76

Problem 2083. Independent direction vectors of a plane

Created by: Marcel

Tags basic, easy, high school math

0

13

Problem 2092. Find offset of an element of a multi dimensional matrix

Created by: Swapnali Gujar

Tags indexing, offset, multi dimensional matrix

1

34

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

Created by: Florian

Tags matrix, power, concatenate

1

41

Problem 220. Signal filtering

Created by: Nikolai

Tags filtering, signal processing

1

13

Problem 221. Boolean algebra

Created by: Tomasz

Tags boolean algebra, nand, truth table

3

8

Problem 2219. Wayfinding 2 - traversing

Created by: J-G van der Toorn

Tags geometry, shortest path, intersection

3

18

Problem 225. Subdivide the Segment

Created by: Roger Stafford

Tags subdivide, combining lengths, Bézout's lemma

2

9

Problem 2251. Find supported functions

Created by: Swapnali Gujar

Tags toolbox, basic matlab, supported function

1

41

Problem 2254. Possible Opponents Matrix for single-elimination tournament

Created by: Paul Berglund

Tags matrices, tournament

3

10

Problem 2262. GJam 2011 Africa Qualifier B: Optimum Profit

Created by: Richard Zapor

Tags gjam, 2011, africa

1

13

Problem 236. newRMS

Created by: AMITAVA BISWAS

Tags dsp

1

77

Problem 2375. Obscured by Earth

Created by: Z

Tags space, aerospace, computational geometry

3

16
1 – 50 of 4,677