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

Create: 0054-Spiral-Matrix.rb

Author: tahsintunan

Diff for: 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