Create a two-dimensional array with new

How do I make a two-dimensional array with new?

When it's a one-dimensional arrangement, int* ary = new int[Size] I wrote it like this

in a two-dimensional array int** arr = new int[sizeX][sizeY];

I can't compile it like this!

2022-09-22 22:31

1 Answers

To dynamically assign a two-dimensional array, you must write a repeat statement as follows:

int sizeX = 5;
int sizeY = 10;

int** ary = new int*[sizeX];
for(int i = 0; i < sizeY; ++i)
    ary[i] = new int[sizeY];

If you look at the picture, it's easy to understand.

alt text

2022-09-22 22:31

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