int **p = new int*[100]

Question

What does it means please clarify?

Answer 1

these are multidimensional arrays i.e. an array of arrays
it can be fully qualified as
int**p= new int[100][100]

Answer 2

p is an array of 100 pointers.

`new int*[ number ]` creates an array with <number> pointers.

`int **p` can be rewritten as `int* *p`, which can be rewritten as `int* p[ <size of array> ]`

https://www.quora.com/What-is-int-x-new-int-n/answer/Slava-Osipov?ch=10&share=f35ae599&srid=iwqHc

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Edit: Thanks Ritwik for correcting me

Answer 3

Ritwik, Thanks for telling me 😇 may you please explain what I got wrong?

Answer 4

p is an integer pointer to an array of 100 integer pointer values but the new function is used to allocate memory dynamically during run time

Answer 5

Actually in offline compilers unlike sololearn we first have to compile our code then run it

Answer 6

Ritwik, Oh,, I see my mistake 🤦🏻‍♂️ thanks for correcting me

Answer 7

Compiling turns into binary language

Answer 8

And run executes it

Answer 9

So normal variables are declared during compile time

Answer 10

But adding (new) stores them during run time

Answer 11

Edwin you are a little wrong

Answer 12

Which can help to take the number of values from the user

Answer 13

My pleasure Edwin