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Problem 234

Spiral Matrix

MediumMath

Return the elements of matrix in clockwise spiral order.

Examples

Example 1

Input: matrix = [[1,2,3],[4,5,6],[7,8,9]]

Output: [1,2,3,6,9,8,7,4,5]

Constraints

m == matrix.lengthn == matrix[i].length

Target ComplexityNot required

O(n) Time · O(1) Space

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Node 22.08.0

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Test casesRun to compare output

Inputmatrix = [[1,2,3],[4,5,6],[7,8,9]]

Expected[1,2,3,6,9,8,7,4,5]

Output—