题目:

题解:
- class Solution:
- def rotate(self, matrix: List[List[int]]) -> None:
- n = len(matrix)
- # 水平翻转
- for i in range(n // 2):
- for j in range(n):
- matrix[i][j], matrix[n - i - 1][j] = matrix[n - i - 1][j], matrix[i][j]
- # 主对角线翻转
- for i in range(n):
- for j in range(i):
- matrix[i][j], matrix[j][i] = matrix[j][i], matrix[i][j]