Problems

1 – 50 of 147

Problem Title Likes Solvers Difficulty

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

Created by: Richard Zapor

Tags pseudo matrix inversion, hyperspectral, application

Problem 908. AVIRIS Inscribed Rectangle Bit Mask - Speed Test

Created by: Richard Zapor

Tags compression, aviris, mask

Problem 916. Rubik's Cube : Solve Ten Face Move - Speed Scoring

Created by: Richard Zapor

Tags optimization, game theory, profiler

Problem 927. Knots Contest: Minimum Knots (TestSuite)

Created by: Richard Zapor

Tags knots, eig

Problem 939. DNA Pattern Match: Performance Metric - Speed

Created by: Richard Zapor

Tags logical indexing, reshape, dna

Problem 952. Unique: Enhanced Performance - Avoiding Memory Crash

Created by: Richard Zapor

Tags speed, unique, memory management

Problem 961. Robust alignment of coordinate system

Created by: J-G van der Toorn

Tags geometry, vector, 3d

Problem 988. Convert a substructure reference string into a valid definition structure for subsref and subsasgn

Created by: J-G van der Toorn

Tags subsref, subsasgn

Problem 527. Augmented Lagrange Multiplier (ALM) Method

Created by: Robert Canfield

Tags aoe4084, constrained minimization

Problem 53975. Compute the effective conductivity of more heterogeneous aquifers

Created by: ChrisR

Tags groundwater, conductivity, elliptic pde

Problem 2907. Collaborative Fun : Nomination

Created by: rifat

Tags self-referential, self reference, collaboration

Problem 2995. Test Driven Solution - Probability Problem 1

Created by: Jonathan

Tags probability, test driven

Problem 3006. Test Driven Solution - Probability Problem 2

Created by: Jonathan

Tags probability, test driven

Problem 3009. Test Driven Solution - Probability Problem 3

Created by: Jonathan

Tags probability, test driven

Problem 3046. I want to know everything!

Created by: Jean-Marie Sainthillier

Tags function, memory management, paranoid

Problem 3074. Compute the cokurtosis of a given portfolio.

Created by: Ken Deeley

Tags linear algebra, statistics, arrayfun

Problem 47473. Slitherlink IV: Recursive (medium size)

Created by: Richard Zapor

Tags recursion, games, puzzle

Problem 726. Chezz_020 Pawn Attack and Slaying King

Created by: Richard Zapor

Tags game theory, multi-call, chezz

Problem 727. Checkerz_000 Kamikazi Kings

Created by: Richard Zapor

Tags game theory, interactive, mulit-call

Problem 737. Criss_Cross_000 : Unique elements in a Square array

Created by: Richard Zapor

Tags game, find, intersect

Problem 738. Criss_Cross_010 : Unique elements, Square array, Words in one array

Created by: Richard Zapor

Tags game, find, intersect

Problem 740. Battleship_010 : (TM) Classic Game - Methodical Bot (100 move max)

Created by: Richard Zapor

Tags multi-call, pattern recognition, games

Problem 1740. Find number patterns in rows of a matrix...

Created by: Chris E.

Tags sorting, matrix manipulation, number patterns

Problem 1772. Stock Data NETFLIX 2011

Created by: William Fligor

Tags mean, range, nflx

Problem 1870. GJam:2013 World B: MAD Drummer

Created by: Richard Zapor

Tags optimization, google, codejam

Problem 1876. GJam: 2013 China Event: Name Sorting

Created by: Richard Zapor

Tags strings, sorting, cell array

Problem 1886. Graceful Double Wheel Graph

Created by: Richard Zapor

Tags graph theory, double wheel, graphs

Problem 1887. Graceful Graph: Wichmann Rulers

Created by: Richard Zapor

Tags physics, graphs, oeis

Problem 1897. GJam 2014 China Rd A: Rational Number Tree

Created by: Richard Zapor

Tags gjam, tree, china 2014

Problem 1900. GJam 2014 China Rd A: Rational Number Tree (Large Values)

Created by: Richard Zapor

Tags bitshift, uint64, gjam

Problem 1903. GJam 2014 China Rd A: Maze with a Left Hand Rule

Created by: Richard Zapor

Tags maze, gjam, china

Problem 1907. Capture the flag(s)

Created by: Alfonso Nieto-Castanon

Tags search, flag, greedy

Problem 1908. Equilibrium

Created by: Alfonso Nieto-Castanon

Tags physics, stack, blocks

Problem 1942. GJam 2014 China Rd B: Party

Created by: Richard Zapor

Tags optimization, gjam, china

Problem 1983. Big data

Created by: Alfonso Nieto-Castanon

Tags linear algebra, optimization, big data

Problem 2043. Six Steps to PCA - Step 1: Centre and Standardize

Created by: Neil Caithness

Tags principal component analysis, pca, z-scores

Problem 2049. Six Steps to PCA - Step 2: Covariance

Created by: Neil Caithness

Tags principal component analysis, pca, z-scores

Problem 2103. Simple Robotics 1: On track?

Created by: Marcel

Tags kinematic chain, robotics, tracking

Problem 2122. Simple Robotics 2 - End effector attitude

Created by: Marcel

Tags basic, geometry, struct

Problem 2191. Order of things - 3

Created by: J-G van der Toorn

Tags matrix, algorithms, sequence

Problem 2192. Order of things - 4

Created by: J-G van der Toorn

Tags matrix, algorithms, sequence

Problem 2220. Wayfinding 3 - passed areas

Created by: J-G van der Toorn

Tags geometry, shortest path, intersection

Problem 2226. Wayfinding 4 - Crossing, level 2

Created by: J-G van der Toorn

Tags geometry, shortest path, intersection

Problem 2242. Wayfinding 5 - Travel contour

Created by: J-G van der Toorn

Tags distance, geometry, shortest path

Problem 2266. 2048 tile game

Created by: Doug Hull

Tags 2048

1 – 50 of 147

Difficulty Rating

Problem Groups

Problems