Initial data commit

Task/Bulls-and-cows-Player/Python/bulls-and-cows-player.py

@@ -0,0 +1,55 @@
+from itertools import permutations
+from random import shuffle
+
+try:
+    raw_input
+except:
+    raw_input = input
+try:
+    from itertools import izip
+except:
+    izip = zip
+
+digits = '123456789'
+size = 4
+
+def parse_score(score):
+    score = score.strip().split(',')
+    return tuple(int(s.strip()) for s in score)
+
+def scorecalc(guess, chosen):
+    bulls = cows = 0
+    for g,c in izip(guess, chosen):
+        if g == c:
+            bulls += 1
+        elif g in chosen:
+            cows += 1
+    return bulls, cows
+
+choices = list(permutations(digits, size))
+shuffle(choices)
+answers = []
+scores  = []
+
+print ("Playing Bulls & Cows with %i unique digits\n" % size)
+
+while True:
+    ans = choices[0]
+    answers.append(ans)
+    #print ("(Narrowed to %i possibilities)" % len(choices))
+    score = raw_input("Guess %2i is %*s. Answer (Bulls, cows)? "
+                      % (len(answers), size, ''.join(ans)))
+    score = parse_score(score)
+    scores.append(score)
+    #print("Bulls: %i, Cows: %i" % score)
+    found =  score == (size, 0)
+    if found:
+        print ("Ye-haw!")
+        break
+    choices = [c for c in choices if scorecalc(c, ans) == score]
+    if not choices:
+        print ("Bad scoring? nothing fits those scores you gave:")
+        print ('  ' +
+               '\n  '.join("%s -> %s" % (''.join(an),sc)
+                           for an,sc in izip(answers, scores)))
+        break