Merge pull request neetcode-gh#1991 from saip7795/sp/spiral-matrix

Create: 0054-Spiral-Matrix.rb

ruby/0054-spiral-matrix.rb

@@ -0,0 +1,39 @@
+def spiral_order(matrix)
+ result = []
+ left = 0
+ right = matrix[0].length
+ top = 0
+ bottom = matrix.length
+
+ while left < right && top < bottom
+
+ (left..right-1).each do |i|
+ result.append(matrix[top][i])
+ end
+
+ top +=1
+
+ (top..bottom-1).each do |i|
+ result.append(matrix[i][right-1])
+ end
+
+ right -=1
+
+ break unless (left < right && top < bottom)
+
+ (right-1).downto(left).each do |i|
+ result.append(matrix[bottom-1][i])
+ end
+
+ bottom -=1
+
+ (bottom-1).downto(top).each do |i|
+ result.append(matrix[i][left])
+ end
+
+ left +=1
+
+ end
+
+ return result
+end