# Problems

1 – 50 of 5,194
 Problem Title Likes Solvers Difficulty

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

Created by: Richard Zapor

5

7

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

Created by: Frequency Domain

Tags hack, get me!

3

17

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

Created by: Richard Zapor

1

24

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

Created by: Richard Zapor

Tags mkdir, copyfile, pwd

1

21

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

Created by: Richard Zapor

Tags physics, gjam, roots

2

20

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

Created by: Marcel

0

16

#### Problem 225. Subdivide the Segment

Created by: Roger Stafford

4

9

#### Problem 2390. Fair Scoring for Cody

Created by: Nicholas Howe

Tags cody, mtree, scoring

3

7

#### Problem 2907. Collaborative Fun : Nomination

Created by: rifat

3

9

#### Problem 3006. Test Driven Solution - Probability Problem 2

Created by: Jonathan

1

12

#### Problem 43025. Check if a directory is on the current MATLAB search path

Created by: Matthew Eicholtz

0

13

#### Problem 44074. GJam 2017 Kickstart: Parentheses (Small)

Created by: Richard Zapor

1

18

#### Problem 44075. GJam 2017 Kickstart: Parentheses (Large)

Created by: Richard Zapor

2

16

#### Problem 843. Hyperspectral Processing: Determine Material Components given a Hyperspectral vector

Created by: Richard Zapor

0

10

#### Problem 861. Memory Map File: Access and Update

Created by: Richard Zapor

1

22

#### Problem 973. Partial pivoting for Gauss Elimination

Created by: Robert Canfield

2

11

#### Problem 52839. Easy Sequences 33: Web Trapped Ant

Created by: Ramon Villamangca

2

10

#### Problem 52854. Poly2mask, drawpolygon or patch

Created by: warnerchang

Tags polygon

1

11

#### Problem 54595. String Logic 18

Created by: Athi

Tags logic, string

0

54

#### Problem 57482. JannaT is Loved By Me

Created by: Md. Rayhan

0

33

#### Problem 57575. An array is given. Find the unique elements of the array. [keep the sequence unchanged]

Created by: Md. Ikrama Hossain

Tags basic, unique, array

0

41

#### Problem 55920. Juros Simples

Created by: Gustavo Oliveira

Tags function

0

34

#### Problem 55935. Loja de tintas

Created by: Gustavo Oliveira

Tags function

0

28

#### Problem 55955. Caracteres Unicos

Created by: Gustavo Oliveira

0

37

#### Problem 56035. sinus de pulsation a

Created by: Yannis Cuypers

Tags #2ee104

1

22

#### Problem 56095. Compound Interest : Future Value

Created by: Mehmet OZC

1

61

#### Problem 56125. Ordinary Annuity : Future Value

Created by: Mehmet OZC

1

40

#### Problem 490. Fastest shortest-path-finder in the west

Created by: Alfonso Nieto-Castanon

1

15

#### Problem 58144. Given the mass and stiffness of an undamped SDOF system, find the natural frequency and the natural period of vibration

Created by: cdawg

0

19

#### Problem 56230. compter le nombre de zéros dans une matrice

Created by: Yannis Cuypers

Tags #2ee104

0

38

#### Problem 58319. Calculate the Voltage Through a Step-Up Transformer

Created by: Andrew Cheyne

Tags math, physics

1

34

#### Problem 58558. Find collatz series next number

Created by: Shashank

2

27

#### Problem 58653. Alternate Arrangement

Created by: Sneha

13

13

#### Problem 49865. Sales Tax

Created by: Doddy Kastanya

Tags easy, tax

1

33

#### Problem 58688. Bag of apples

Created by: Sneha

0

41

#### Problem 58743. Find the surface area of a cone.

Created by: Mabel

Tags math, geometry

0

24

#### Problem 58797. Array Width (no usage of size)

Created by: Richard Zapor

Tags width

0

22

#### Problem 58802. Array Height (no usage of size)

Created by: Richard Zapor

Tags height

0

21

#### Problem 58877. Neural Net Image Convolution: Return only Valid portion of conv2

Created by: Richard Zapor

Tags digits, conv2, valid

0

5

#### Problem 58882. Neural Nets: Activation functions

Created by: Richard Zapor

0

9

#### Problem 58887. Neural Net: Best Index of Prediction array

Created by: Richard Zapor

0

8

#### Problem 58892. Neural Net: Calculate Perceptron

Created by: Richard Zapor

0

7

#### Problem 58897. Neural Net: Calculate Bias Single Perceptron (AND/NAND/OR/NOR/XOR)

Created by: Richard Zapor

0

5

#### Problem 58917. Neural Net: Back Propagation of Quad Output with Bias, ReLU

Created by: Richard Zapor

0

5

#### Problem 50132. Number Puzzle - 033

Created by: Doddy Kastanya

Tags puzzles

0

33

#### Problem 50137. Number Puzzle - 034

Created by: Doddy Kastanya

Tags puzzles

0

32

#### Problem 50152. Number Puzzle - 037

Created by: Doddy Kastanya

Tags puzzles

0

28

#### Problem 50162. Number Puzzle - 039

Created by: Doddy Kastanya

Tags puzzles

0

30

#### Problem 50172. Number Puzzle - 041

Created by: Doddy Kastanya

Tags puzzles

1

29

#### Problem 50237. Number Puzzle - 045

Created by: Doddy Kastanya

Tags puzzles

0

29

1 – 50 of 5,194