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