Problems

1 – 21 of 21

Problem Title Likes Solvers Difficulty

Problem 44402. Horizontal matrix sort

Created by: Shaul Salomon

Tags matrices, sort, 22105

309

177

Problem 45171. Squares in Squares - Concentric Squares

Created by: Reece Blunt

Tags matrices, matrix, zeros

Problem 45172. Cross ("+") flag returns

Created by: Kiran Ramsaroop

Tags matrices, matrix manipulation, matrix

Problem 514. Spot the rectangle (Part 2)

Created by: Ned Gulley

Tags matrices, 17x17

Problem 512. Spot the rectangle

Created by: Ned Gulley

Tags matrices, 17x17

Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

11893

Problem 611. surrounded matrix

Created by: Grzegorz Knor

Tags matrices

844

Problem 14. Find the numeric mean of the prime numbers in a matrix.

Created by: Cody Team

Tags easy, matrices

7472

Problem 2303. Compute Hamming distances between each pair of rows from two input matrices

Created by: Ryszard Maciol

Tags matrices, hamming distance, metric space

Problem 312. Better bullseye matrix

Created by: Alan Chalker

Tags matrices

200

Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

6310

Problem 44467. Product of Each Column

Created by: Shaul Salomon

Tags matrices, 22105

378

Problem 45402. Find an overlap in the cleaning schedule of two tank reactors

Created by: Karl Ezra Pilario

Tags matrices, lcm, chemical engineering

Problem 44469. Diagonal Pattern

Created by: Shaul Salomon

Tags matrices, loops, 22105

386

Problem 44063. Make a rainbow matrix (follow-up to checkerboard matrix)

Created by: Jihye Sofia Seo

Tags matrices, square

Problem 11. Back and Forth Rows

Created by: Cody Team

Tags matrices

6349

Problem 4. Make a checkerboard matrix

Created by: Cody Team

Tags matrices, square

177

13620

Problem 18. Bullseye Matrix

Created by: Cody Team

Tags matrices

4686

1 – 21 of 21

Difficulty Rating

Problem Groups

Problems

Problem 44402. Horizontal matrix sort

Problem 44496. vector indexes for a matrix

Problem 44854. Alternating 1´s and 0´s in a matrix

Problem 44446. Add a vector to a matrix

Problem 45171. Squares in Squares - Concentric Squares

Problem 45172. Cross ("+") flag returns

Problem 514. Spot the rectangle (Part 2)

Problem 512. Spot the rectangle

Problem 33. Create times-tables

Problem 611. surrounded matrix

Problem 14. Find the numeric mean of the prime numbers in a matrix.

Problem 2303. Compute Hamming distances between each pair of rows from two input matrices

Problem 312. Better bullseye matrix

Problem 32. Most nonzero elements in row

Problem 44467. Product of Each Column

Problem 45402. Find an overlap in the cleaning schedule of two tank reactors

Problem 44469. Diagonal Pattern

Problem 44063. Make a rainbow matrix (follow-up to checkerboard matrix)

Problem 11. Back and Forth Rows

Problem 4. Make a checkerboard matrix

Problem 18. Bullseye Matrix