Make C/C++/Python variants use non-repeatable RNG

Let's allow the students to figure out it for themselves.

C++/GameRunner.cpp

@@ -1,12 +1,14 @@
 #include <stdlib.h>
+#include <time.h>
 #include "Game.h"
 
 static bool notAWinner;
 
 int main()
 {
 	Game aGame;
-	srand(0);
+        srand ((unsigned)time(0));
+	// srand(0);
 	aGame.add("Chet");
 	aGame.add("Pat");
 	aGame.add("Sue");

C/game_runner.c

@@ -8,8 +8,8 @@ int
 main ()
 {
   struct Game *a_game = game_new ();
-  srand(1); // make RNG repeatable
-  // srand ((unsigned)time(0));
+  //srand(1); // make RNG repeatable
+  srand ((unsigned)time(0));
 
   game_add (a_game, "Chet");
   game_add (a_game, "Pat");

python/texttest_fixture.py

@@ -2,8 +2,8 @@
 from trivia import main
 
 # Make sure all runs use the same random sequence
-from random import seed
-seed(1)
+#from random import seed
+#seed(1)
 
 if __name__ == "__main__":
    main()