My solution (not working) - Rotate Image.

gistfile1.txt

class Solution:
    def rotate(self, matrix):
        """
        :type matrix: List[List[int]]
        :rtype: void Do not return anything, modify matrix in-place instead.
        """
        # S: Ceil Py without math
        for level in range(len(matrix)//2):
            # 4-> 2, 5 -> 2.
            # SEarched floor
            for index in range(level, len(matrix)-1-level):
                # [0, 1, 2, 3, 4] -> [1, 2, 3] -> [2]
                # [0, 1, 2, 3] -> [1, 2]
                # lt, lb, rb, rt
                temp = matrix[level][index+level] 

                # lt = lb ### 
                matrix[level][index + level] = matrix[len(matrix)-1-index-level][level]

                # lb = rb #### 
                matrix[len(matrix)-1-index-level][level] = matrix[len(matrix)-1-level][len(matrix)-1-index-level]

                # rb = rt
                matrix[len(matrix)-1-level][len(matrix)-1-index-level] = matrix[index+level][len(matrix)-1-level]
                
                # rt = lt
                matrix[index+level][len(matrix)-1-level] = temp