A-M baby

Task/Monty-Hall-problem/BBC-BASIC/monty-hall-problem.bbc

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+      total% = 10000
+      FOR trial% = 1 TO total%
+        prize_door% = RND(3) : REM. The prize is behind this door
+        guess_door% = RND(3) : REM. The contestant guesses this door
+        IF prize_door% = guess_door% THEN
+          REM. The contestant guessed right, reveal either of the others
+          reveal_door% = RND(2)
+          IF prize_door% = 1 reveal_door% += 1
+          IF prize_door% = 2 AND reveal_door% = 2 reveal_door% = 3
+        ELSE
+          REM. The contestant guessed wrong, so reveal the non-prize door
+          reveal_door% = prize_door% EOR guess_door%
+        ENDIF
+        stick_door% = guess_door% : REM. The sticker doesn't change his mind
+        swap_door% = guess_door% EOR reveal_door% : REM. but the swapper does
+        IF stick_door% = prize_door% sticker% += 1
+        IF swap_door% = prize_door% swapper% += 1
+      NEXT trial%
+      PRINT "After a total of ";total%;" trials,"
+      PRINT "The 'sticker' won ";sticker%;" times (";INT(sticker%/total%*100);"%)"
+      PRINT "The 'swapper' won ";swapper%;" times (";INT(swapper%/total%*100);"%)"