Tracks
/
Julia
Julia
/
Exercises
/
Spiral Matrix
Spiral Matrix

Spiral Matrix

Easy

Instructions

Given the size, return a square matrix of numbers in spiral order.

The matrix should be filled with natural numbers, starting from 1 in the top-left corner, increasing in an inward, clockwise spiral order, like these examples:

Examples

Spiral matrix of size 3

1 2 3
8 9 4
7 6 5

Spiral matrix of size 4

 1  2  3 4
12 13 14 5
11 16 15 6
10  9  8 7
Last updated 8 September 2021
Edit via GitHub The link opens in a new window or tab
Julia Exercism

Ready to start Spiral Matrix?

Sign up to Exercism to learn and master Julia with 3 concepts, 50 exercises, and real human mentoring, all for free.