I believe I understand what the code does, but I don't understand why it does it (Beginner)

[neat mural]

int rows = sizeof(numbers)/sizeof(numbers[0]);
int columns = sizeof(numbers[0])/sizeof(numbers[0][0]);

[crystal wave]

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[burnt briar]

sizeof(arr) returns the size of the array in bytes

sizeof(arr[0]) returns the the bytes per row

sizeof(arr[0][0]) returns the size of one element (in bytes ofc)

assuming were working with a T arr[N][M] 2d array or array of arrays

the first one gives sizeof(T) * N * M
2nd one gives sizeof(T) * M
3rd sizeof(T)

[neat mural]

Okay that cleared it up in my head, thank you.

!solved