Spiral order printing of a matrix

Author: HimanshuGarg701

Matrix/Spiral.kt

@@ -0,0 +1,67 @@
+package Matrix
+
+fun main(args : Array<String>){
+    val matrix = arrayOf(
+                    arrayOf(1,2,3,4,5),
+                    arrayOf(3,4,5,6,7),
+                    arrayOf(4,5,6,7,8),
+                    arrayOf(6,7,8,9,10)
+                )
+
+    printSpiral(matrix)
+}
+
+private fun printSpiral(matrix : Array<Array<Int>>){
+    var top = 0
+    var left = 0
+    var right = matrix[0].size-1
+    var bottom = matrix.size-1
+
+    while(true){
+        if(left > right){
+            break
+        }
+
+        // Printing the top row of the matrix
+        for(i in left..right){
+            println("  " + matrix[top][i])
+        }
+
+        // After printing the top row, narrow down the matrix
+        top++
+
+        if(top>bottom){
+            break
+        }
+
+        // Printing the right column
+        for(i in top..bottom){
+            println("  " + matrix[i][right])
+        }
+
+        // After printing the right column, narrow down the area from the right side
+        right--
+
+        if(left>right){
+            break
+        }
+
+        // Printing the bottom row
+        for(i in right.downTo(left)){
+            println("  " + matrix[bottom][i])
+        }
+
+        // After printing the bottom row, narrow down the area from the bottom
+        bottom--
+
+        if(top > bottom){
+            break
+        }
+
+        // Printing out the left column
+        for(i in bottom.downTo(top)){
+            println("  " + matrix[i][left])
+        }
+        left++
+    }
+}