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Update matrix rotation README.

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Oleksii Trekhleb 2018-07-06 11:52:34 +03:00
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src/algorithms/uncategorized/square-matrix-rotation/README.md
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@ -80,9 +80,29 @@ diagonal top-right/bottom-left rotation along with horizontal
rotation. rotation.
``` ```
A B C A - - . . A Let's say we have a string at the top of the matrix:
/ / --> B - - --> . . B
/ . . C - - . . C A B C
• • •
• • •
Let's do top-right/bottom-left diagonal reflection:
A B C
/ / •
/ • •
And not let's do horizontal reflection:
A → →
B → →
C → →
The string has been rotated to 90 degree.
• • A
• • B
• • C
``` ```
## References ## References