# Problems

1 – 50 of 140
 Problem Title Likes Solvers Difficulty

#### Problem 56278. Easy Sequences 83: Digits of Powers of 3

Created by: Ramon Villamangca

0

0

#### Problem 57323. Easy Sequences 84: Digits of Powers of 5

Created by: Ramon Villamangca

0

0

#### Problem 45315. Find the point of intersection of tangents.

Created by: Paul Johnson

0

3

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

Created by: Matthew Eicholtz

0

8

#### Problem 44389. Just take it easy for a second or two!

Created by: David Verrelli

Tags time, timing

0

8

#### Problem 44435. Testing for randomness: uniform distribution of real numbers (distribution checking)

Created by: David Verrelli

0

2

#### Problem 44545. "Percentages may not total 100 due to rounding"

Created by: David Verrelli

0

3

#### Problem 43478. Calculate the dynamic time warping similarity

Created by: Steven Van Vaerenbergh

0

4

#### Problem 44655. Computational power of Cody servers

Created by: David Verrelli

0

2

#### Problem 44658. Kurosu solver

Created by: HH

Tags games, kurosu

4

8

#### Problem 44690. Comparison of floating-point numbers (doubles)

Created by: David Verrelli

2

7

#### Problem 44691. Comparison of floating-point numbers (singles)

Created by: David Verrelli

1

6

#### Problem 44692. Is input the global variable z?

Created by: David Verrelli

0

4

#### Problem 43613. how to concatenate matrices

Created by: Marc Jakobi

1

12

#### Problem 44708. Sherlock Holmes: The Spy Problem

Created by: J. S. Kowontan

0

8

#### Problem 44715. 007: Chinese Barrack Invasion

Created by: J. S. Kowontan

1

8

#### Problem 44718. Optimize the Tollbooths

Created by: Aamod Garg

0

2

#### Problem 44720. God of War: The Chains Of Olympus

Created by: J. S. Kowontan

Tags chain, greek, break

1

5

#### Problem 44723. Let's Make A Deal: The Player's Dilemma

Created by: J. S. Kowontan

0

2

#### Problem 44724. Let's Make A Deal: The Player's Dilemma 2

Created by: J. S. Kowontan

1

2

#### Problem 44727. Let's Make A Deal: Criminal Minds

Created by: J. S. Kowontan

1

2

Created by: Kwin

0

5

#### Problem 44734. Solve the 2-norm Regularization Problem

Created by: Jason Nicholson

0

4

#### Problem 44756. Lights Out 5 - 5x5, 10 moves

Created by: goc3

Tags search, game, logic

3

14

#### Problem 43676. Count the Digits in the Box

Created by: Ned Gulley

3

6

#### Problem 44757. Lights Out 6 - 5x5, 13 moves

Created by: goc3

Tags game, logic, flip

1

13

#### Problem 44784. Project Euler: Problem 14 Longest Collatz sequence(harder version)

Created by: Binbin Qi

1

3

#### Problem 46053. Construct finite difference approximations of derivatives

Created by: ChrisR

0

2

#### Problem 44832. Generate Convolution Matrix of 2D Kernel with Different Convolution Shapes (Full, Same, Valid)

Created by: Royi Avital

0

3

#### Problem 44226. Logistic map

Created by: Daniel Meier

0

6

#### Problem 44249. Pipeline - Variable-length Input

Created by: LY Cao

1

0

#### Problem 45212. AES MixColumns() Transformation

Created by: David Hill

0

2

#### Problem 45213. AES-256 KeyExpansion()

Created by: David Hill

0

2

#### Problem 47473. Slitherlink IV: Recursive (medium size)

Created by: Richard Zapor

0

0

#### Problem 633. Create Circular Perfect Square Sequence

Created by: Richard Zapor

Tags recursion

1

9

#### Problem 653. Steal, Share, or Catch: Tournament of Champions

Created by: Doug Hull

5

9

#### Problem 663. Crypto Addition - v01

Created by: Richard Zapor

0

6

#### Problem 677. Vine Contest 1-D Case Optimization: Board 78

Created by: Richard Zapor

0

1

#### Problem 698. Knots Contest: Score (TestSuite)

Created by: Richard Zapor

Tags knots, eig

0

6

#### Problem 714. Chezz_000 : Simplified chess

Created by: Richard Zapor

1

5

#### Problem 715. Chezz_015 : Simplified chess

Created by: Richard Zapor

1

3

#### Problem 726. Chezz_020 Pawn Attack and Slaying King

Created by: Richard Zapor

0

1

#### Problem 727. Checkerz_000 Kamikazi Kings

Created by: Richard Zapor

0

3

#### Problem 737. Criss_Cross_000 : Unique elements in a Square array

Created by: Richard Zapor

1

8

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

Created by: Richard Zapor

1

8

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

Created by: Richard Zapor

0

4

#### Problem 779. Read a Text file from a URL and create an {N x 1} Cell Array

Created by: Richard Zapor

0

9

#### Problem 781. Access a web hosted copy of the Tiles Contest MAT file

Created by: Richard Zapor

0

6

#### Problem 787. Path Optimization thru N words : Time Optimization

Created by: Richard Zapor

1

8

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

Created by: Neil Caithness

2

13

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