How to read numbers from a file?

Question

C++ / C#

Let's say I have a file "name.txt" and inside it are two lines:

10
1 2 4 1 2 5 2 12 51

How to split the numbers, on the second line, by spaces and put them into an integer array?
The number of digits on the second line is not constant.

Answer 1

std::stringstream