C ++ rand () does not give the correct seed based number

Question

I am working on assigning C ++ to my class, and we should use rand () with seed 99 to create a set of values. However, my problem is that when I try to create a value in our parameters, the number is different from what the instructor provided us for a specific first number. The code is shown below:

    int lottoNumber;
  srand (RANDOM_NUMBER_SEED);
  do
  {
    lottoNumber = rand ();
  } while (lottoNumber > 25 || lottoNumber < 1);

  cout << lottoNumber << endl;

The value obtained from this is 13, and the number to be produced is 2. Any help as to why this is different would be great, thanks!

Answer 1

The algorithm used rand()is determined by the implementation.

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Answer 2

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, !!!

Answer 3

rand() , cppreference.com std:: rand:

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, - std:: mt19937