rotate_image

Author: hitzzc

README.md

@@ -42,4 +42,5 @@ Golang solution for leetcode. For each problem, there is a simple *_test.go to t
 #### [43. multiply strings](https://github.com/hitzzc/go-leetcode/tree/master/multiply_strings)
 #### [46. permutations](https://github.com/hitzzc/go-leetcode/tree/master/permutations)
 #### [47. permutations II](https://github.com/hitzzc/go-leetcode/tree/master/permutations_II)
+#### [48. rotate image](https://github.com/hitzzc/go-leetcode/tree/master/rotate_image)
 

rotate_image/rotate_image.go

@@ -0,0 +1,15 @@
+package rotate_image
+
+import (
+	"fmt"
+)
+
+func rotate(matrix [][]int) {
+	n := len(matrix) - 1
+	for i := 0; i < n/2+1; i++ {
+		for j := 0; j < len(matrix)/2; j++ {
+			matrix[j][n-i], matrix[n-i][n-j], matrix[n-j][i], matrix[i][j] = matrix[i][j], matrix[j][n-i], matrix[n-i][n-j], matrix[n-j][i]
+		}
+	}
+	return
+}