関連ワード:  how to declare 2d array in cpp    how to initialize 2d array in cpp    how to define 2d array in cpp    how to create 2d array in cpp    how to declare 2d array in c++    how to initialize 2d array in c++    how to create 2d array in c++    how to initialize 2d array in c++ with 0    how to declare multidimensional array in c++    how to declare 2d matrix in c++