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59 lines
745 B
Markdown
59 lines
745 B
Markdown
# rotate-2-dimensional-array-90-degrees
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Created by [@theoludwig](https://github.com/theoludwig) on 3 December 2021.
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## Instructions
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Given a square/rectangle matrix representing an image and a direction of rotation (`clockwise` or `anticlockwise`), rotate the image by 90 degrees.
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### Input
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- **Line 1:** The direction (`clockwise` or `anticlockwise`) of rotation
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- **Next Lines:** The matrix of the image
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### Output
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- **Lines:** The rotated matrix
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## Examples
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### Example 1
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#### Input
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```txt
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clockwise
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1 2 3
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4 5 6
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7 8 9
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```
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#### Output
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```txt
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7 4 1
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8 5 2
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9 6 3
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```
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### Example 2
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#### Input
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```txt
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anticlockwise
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1 2 3
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4 5 6
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7 8 9
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```
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#### Output
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```txt
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1 4 7
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2 5 8
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3 6 9
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```
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See the `test` folder for examples of input/output.
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