rm old pumping game

FoSAP/pumpgame.py

-import sys
-import random
-
-# language {a^n b^n : n \in IN}
-def L(w):
-    i = 0
-    mid = False
-    for a in w:
-        if a not in ['a', 'b']:
-            return False
-        if a == 'a' and not mid:
-            i += 1
-        if a == 'a' and mid:
-            return False
-        if a == 'b' and mid:
-            i -= 1
-        if a == 'b' and not mid:
-            r = i
-            mid = True
-            i -= 1
-    if i != 0 or 2*r < n:
-        return False
-    return True
-
-n = random.randint(1, 10)
-print("Alice claims the language [[a^n b^n : n in IN]] is regular and there exists an automaton with {0} states.".format(n))
-w = input("Choose a word in the language of length >= {0}: ".format(n))
-
-if not L(w):
-    sys.exit("Your word is not in the language or your word is too short, you lose!")
-
-k = random.randint(0, n-1)
-l = random.randint(k+1, n)
-
-x = w[:k]
-y = w[k:l]
-z = w[l:]
-
-print("Alice chooses the decomposition x = {0}, y = {1}, z = {2}.".format(x, y, z))
-i = int(input("Choose a natural number i sucht that xy^iz is not in the language: "))
-
-wp = x + (y*i) + z
-
-if not L(wp):
-    print("w' = xy^{0}z is not in the language, you win.".format(i))
-else:
-    sys.exit("w' = xy^{0}z is in the language, you lose.".format(i))