Problem Solving
99. Transpose Matrix
굥깡
2023. 1. 19. 17:58
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https://leetcode.com/problems/transpose-matrix/description/
Transpose Matrix - LeetCode
Transpose Matrix - Given a 2D integer array matrix, return the transpose of matrix. The transpose of a matrix is the matrix flipped over its main diagonal, switching the matrix's row and column indices. [https://assets.leetcode.com/uploads/2021/02/10/hint_
leetcode.com
matrix를 transpose 하는 문제
class Solution:
def transpose(self, matrix: List[List[int]]) -> List[List[int]]:
new = [[] * len(matrix) for i in range(len(matrix[0]))]
for idx, line in enumerate(matrix):
for idx2, j in enumerate(line):
new[idx2].append(j)
return new선형대수학 생각이 났다ㅎㅋ
원래는 swap 하는 방식으로 풀려고 했지만 그렇게 풀면 더 어렵다
