数据结构 - 转置矩阵(Transpose Matrix)javascript
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2022-03-08 15:45:46
给定一个矩阵 A, 返回 A 的转置矩阵。Given a matrix A, return the transpose of A.矩阵的转置是指将矩阵的主对角线翻转,交换矩阵的行索引与列索引。The transpose of a matrix is the matrix flipped over it’s main diagonal, switching the row and column indices of the matrix.示例 1:输入:[[1,2,3],[4,5,6],[7,8,...
题目来自于:https://leetcode-cn.com/problems/transpose-matrix/
给定一个矩阵 A, 返回 A 的转置矩阵。
Given a matrix A, return the transpose of A.
矩阵的转置是指将矩阵的主对角线翻转,交换矩阵的行索引与列索引。
The transpose of a matrix is the matrix flipped over it’s main diagonal, switching the row and column indices of the matrix.
示例 1:
输入:[[1,2,3],[4,5,6],[7,8,9]]
输出:[[1,4,7],[2,5,8],[3,6,9]]
示例 2:
输入:[[1,2,3],[4,5,6]]
输出:[[1,4],[2,5],[3,6]]
提示:
1 <= A.length <= 1000
1 <= A[0].length <= 1000
var transpose = function(A) {
//重新定义一个空的数组
var B=[];
//遍历A数组的行
for(let i=0;i<A.length;i++){
//遍历A数组的列
for(let j=0;j<A[0].length;j++){
//排除一种情况B数组B[j]为空
if (!B[j]) {B[j] = [];}
//其余情况,交换矩阵的行索引与列索引
B[j][i]=A[i][j];
}
}
return B;
};
本文地址:https://blog.csdn.net/ingenuou_/article/details/111106582