C#

System.Random randomNumberGenerator = new System.Random((int) DateTime.Now.Ticks);
for(int i = 0; i < rounds; i++)
{	
  bool firstPlayersChoice = GetRandomBool(randomNumberGenerator);
  bool secondPlayersChoice = GetRandomBool(randomNumberGenerator);
  // Add them to a collection
}// Display values from collection
...
public static bool GetRandomBool(System.Random rg)
{
  	int randomNumber = rg.Next();
	if(randomNumber % 2 == 1)
	{
		return true;	
        }
	else
	{
		return false;
	}
}

static System.Random _randomNumberGenerator = new System.Random((int)DateTime.Now.Ticks);

public static bool GetRandomBool()
{
  int randomNumber = _randomNumberGenerator.Next();
  if(randomNumber % 2 == 1)
  {
    return true;
  }
  else
  {
    return false;
  }
}

Vikram A Punathambekar wrote:

Your solution is so simple, it's beautiful. 5'd.

Vikram A Punathambekar wrote:

You'll get your mention in the upcoming article, CPallini.

bool firstPlayersChoice = GetRandomBool();
Thread.Sleep(1);
bool secondPlayersChoice = GetRandomBool();

Corinna John wrote:

Any questions about the program being slow can be redirected to the author of GetRandomBool().

J4amieC wrote:

Whoever has written GetRandomBool has written it incorrectly for rapid sequential calls.