# Problems

1 – 50 of 5,227
 Problem Title Likes Solvers Difficulty

#### 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 55210. Determine whether one vector is a subset of another

Created by: ChrisR

6

11

#### 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 2390. Fair Scoring for Cody

Created by: Nicholas Howe

Tags cody, mtree, scoring

4

7

#### Problem 2907. Collaborative Fun : Nomination

Created by: rifat

3

9

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

Created by: Frequency Domain

Tags hack, get me!

4

17

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

Created by: Richard Zapor

Tags physics, gjam, roots

3

20

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

Created by: Marcel

0

17

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

Created by: Richard Zapor

8

8

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

Created by: Matthew Eicholtz

0

15

#### 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 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

24

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

Created by: Alfonso Nieto-Castanon

1

15

#### Problem 55920. Juros Simples

Created by: Gustavo Oliveira

Tags function

0

37

#### Problem 55955. Caracteres Unicos

Created by: Gustavo Oliveira

0

40

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

Created by: Andrew Cheyne

Tags math, physics

1

38

#### Problem 56035. sinus de pulsation a

Created by: Yannis Cuypers

Tags #2ee104

1

23

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

Created by: Mehmet OZC

1

66

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

Created by: Yannis Cuypers

Tags #2ee104

0

42

#### Problem 58653. Alternate Arrangement

Created by: Sneha

13

16

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

Created by: Richard Zapor

Tags width

0

32

#### 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

8

#### 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 50137. Number Puzzle - 034

Created by: Doddy Kastanya

Tags puzzles

0

35

#### Problem 50162. Number Puzzle - 039

Created by: Doddy Kastanya

Tags puzzles

0

32

#### Problem 50172. Number Puzzle - 041

Created by: Doddy Kastanya

Tags puzzles

1

31

#### Problem 50237. Number Puzzle - 045

Created by: Doddy Kastanya

Tags puzzles

0

33

#### Problem 59121. rotation et mise à l'échelle avec des complexes

Created by: Yannis Cuypers

0

12

0

18

#### Problem 59349. Determine ground distance from an aircraft to a DME station

Created by: Michael Byrne

0

16

#### Problem 59409. Determine pressure altitude using field elevation and altimeter setting

Created by: Michael Byrne

0

13

1

30

#### Problem 59551. Range of Values in a Matrix

Created by: Hassaan

0

24

#### Problem 50524. Calculate the structural rank of a 2-by-4 matrix.

Created by: Tesfaye Girma

Tags matrix

0

36

Created by: Ryan

1

9

#### Problem 59736. Counting the occurrences of a digit in a book

Created by: minnolina

Tags basic, easy

0

10

#### Problem 59741. Pivot index

Created by: minnolina

Tags basic, easy

0

7

#### Problem 59761. Digits eliminate

Created by: minnolina

Tags basic, easy

0

13

#### Problem 59786. Missing Number (arithmetic progression)

Created by: minnolina

Tags basic, easy

0

12

#### Problem 59801. Limiting Element Occurrences

Created by: minnolina

Tags basic, easy

1

7

#### Problem 59811. Sort by absolute value

Created by: minnolina

Tags basic, easy, sort

0

18

#### Problem 59816. Sun angle

Created by: minnolina

Tags basic, easy

1

10

1 – 50 of 5,227