refactor 48

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_48.java

@@ -2,47 +2,6 @@
 
 import com.fishercoder.common.utils.CommonUtils;
 
-/**
- * 48. Rotate Image
-
- You are given an n x n 2D matrix representing an image.
-
- Rotate the image by 90 degrees (clockwise).
-
- Note:
- You have to rotate the image in-place, which means you have to modify the
- input 2D matrix directly. DO NOT allocate another 2D matrix and do the rotation.
-
- Example 1:
- Given input matrix =
- [
- [1,2,3],
- [4,5,6],
- [7,8,9]
- ],
- rotate the input matrix in-place such that it becomes:
- [
- [7,4,1],
- [8,5,2],
- [9,6,3]
- ]
-
- Example 2:
- Given input matrix =
- [
- [ 5, 1, 9,11],
- [ 2, 4, 8,10],
- [13, 3, 6, 7],
- [15,14,12,16]
- ],
- rotate the input matrix in-place such that it becomes:
- [
- [15,13, 2, 5],
- [14, 3, 4, 1],
- [12, 6, 8, 9],
- [16, 7,10,11]
- ]
- */
 public class _48 {
 
     /**Note: this is an n*n matrix, in other words, it's a square, this makes it easier as well.*/