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| -rw-r--r-- | challenge-088/henry-wong/php/ch-2.php | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/challenge-088/henry-wong/php/ch-2.php b/challenge-088/henry-wong/php/ch-2.php index d5154c58f0..2e639bec68 100644 --- a/challenge-088/henry-wong/php/ch-2.php +++ b/challenge-088/henry-wong/php/ch-2.php @@ -1,9 +1,13 @@ <?php + +# see http://techieme.in/matrix-rotation/ + # 0. take row # 1. delete row # 2. rotate matrix 90 degrees # 3. repeat again till no matrix +# Rotate matrix # 1. transpose matrix # 2. reflect horizontal axis |