1.
#include "randgen.h"
#include <iostream.h>

void main (void) {
	RandGen rand;
	for (int x = 0;x < 6;x++) {
		cout << "Roll " << x << " : " << rand.RandInt(1,6) << "\n";
	}
}

2.
2 different random numbers are generated, one for testing for red, and another for testing for white and blue. The program should use only one random number by setting a variable equal to randomVals.RandInt(3) and then testing with that.

3.
Missing code : int (r*2)

4.
#include "randgen.h"
#include <iostream.h>

int main()
{
  RandGen randomVals;
  int position = 0;
  int maxpos = 0;
  int minpos = 0;
  int numSteps;
  int step;
  int flip;

  cout << "Number of steps? ";
  cin >> numSteps;
  for (step = 0; step < numSteps; step++)
  {
    flip = randomVals.RandInt(2);
    if (flip == 0)
    {
      position++;
      if (position > maxpos) maxpos = position;
    }
    else
    {
      position--;
      if (position < minpos) minpos = position;
    }
  }
  cout << "Final position = " << position << endl;
  cout << "Maximum position = " << maxpos << endl;
  cout << "Minimum position = " << minpos << endl;
  return 0;
}