関連ワード:  how to define 2d array in cpp    how to declare 2d array in cpp    how to initialize 2d array in cpp    how to declare 2d array in c++    how to initialize 2d array in c++    how to initialize 2d array in c++ with 0    how to define 2d matrix in c++    how to declare a 2d array in c++ dynamically    how to declare 2d array in function c++    how to initialize 2d dynamic array in c++