class Solution { public: vector<vector<int>> transpose(vector<vector<int>>& A) { vector<vector<int>> res; if(A.empty() || A[0].empty()){ return res; } int h = A.size(); int w = A[0].size(); vector<int> row; for(int ww=0;ww <w; ww++){ row.clear(); for(int hh=0; hh<h;hh++){ row.push_back(A[hh][ww]); } res.push_back(row); } return res; } };
来源:https://www.cnblogs.com/theodoric008/p/9419032.html