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This tag is for challenges involving matrices. A matrix, also known as a 2D array, is a list of numbers arranged in a rectangle with rows and columns.

8 votes
14 answers
813 views

Ragged Matrix Indexing

A ragged matrix, is a matrix that has a different number of elements in each row. … Your challenge is to write a program in any favorable language to find the indices of all occurrences of target in the ragged matrix. …
13 votes
13 answers
2k views

Mat Printing Matrix

A manufacturing company wants to print a design on mats of varying dimensions, and they hired you to program a robot to make these mats. The design consists of alternating rings of any 2 symbols on a …
12 votes
5 answers
924 views

Simulating Bombs

You are given an integer n, representing the grid size of n*n You are then given the grid of n*n You may take in the input as a list of n lines Output the shock waves of all bombs You may output as a matrix
12 votes
7 answers
749 views

Knights Jam | Chess

You are allowed to take in the input as a matrix or array/list You are allowed to use 0 or in the input instead of . …
10 votes
7 answers
318 views

Cell Evolution Matrix

Your lab needed to simulate how a particular cell evolves over time in a 2D grid space. A sample 2D grid space below shows a single cell at the centre of the grid. 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 …