関連ワード:  how to create 2d array in cpp    how to declare 2d array in cpp    how to create 2d array in c++    how to create 2 dimensional array in c++ using new    how to create 2 dimensional array in c++    how to declare multidimensional array in cpp    how to declare 2d array in c++    how to create 2d matrix in c++    how to create multidimensional array in c++    how to create dynamic 2d array in c++