added next to days

09/solve01.py

@@ -0,0 +1,75 @@
+#!/usr/bin/env python3
+
+
+def play(players, count):
+    marbles = dict()
+    marble_current = None
+    score = [0] * players
+
+    def add_marble(num):
+        nonlocal marbles
+        nonlocal marble_current
+
+        item = {
+            'number': num,
+            'prev': None,
+            'next': None
+        }
+        marbles[num] = item
+        if len(marbles) == 1:
+            item['prev'] = num
+            item['next'] = num
+        else:
+            j1 = marbles[marble_current]['next']
+            j2 = marbles[j1]['next']
+            item['prev'] = j1
+            item['next'] = j2
+            marbles[j1]['next'] = num
+            marbles[j2]['prev'] = num
+
+        marble_current = num
+#        print('adding marble {} next to {} and {}'.format(num, item['prev'], item['next']))
+
+    def rule_23(round):
+        nonlocal players
+        nonlocal marbles
+        nonlocal score
+        nonlocal marble_current
+
+        j1 = marble_current
+        for i in range(7):
+            j1 = marbles[j1]['prev']
+        
+        marble_current = marbles[j1]['next']
+        j1p = marbles[j1]['prev']
+        j1n = marbles[j1]['next']
+
+        marbles[j1p]['next'] = j1n
+        marbles[j1n]['pred'] = j1p
+
+        player = round % players
+        score[player] += j1
+        score[player] += round
+
+#        print('removed marble {} between {} and {}'.format(j1,j1p,j1n))
+#        print('added {} and {} to player {}'.format(j1,round, player))
+
+    for r in range(count):
+       if (r % 23 == 0) and (r > 0):
+           rule_23(r)
+       else:
+           add_marble(r)
+
+    print(max(score))
+
+#play(10, 26)
+#play(10, 1619)
+#play(13, 8000)
+#play(17, 1105)
+#play(21, 6112)
+#play(30, 5808)
+play(486, 70834)
+
+
+
+

09/solve02.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+
+
+def play(players, count):
+    marbles = dict()
+    marble_current = None
+    score = [0] * players
+
+    def add_marble(num):
+        nonlocal marbles
+        nonlocal marble_current
+
+        item = {
+            'number': num,
+            'prev': None,
+            'next': None
+        }
+        marbles[num] = item
+        if len(marbles) == 1:
+            item['prev'] = num
+            item['next'] = num
+        else:
+            j1 = marbles[marble_current]['next']
+            j2 = marbles[j1]['next']
+            item['prev'] = j1
+            item['next'] = j2
+            marbles[j1]['next'] = num
+            marbles[j2]['prev'] = num
+
+        marble_current = num
+#        print('adding marble {} next to {} and {}'.format(num, item['prev'], item['next']))
+
+    def rule_23(round):
+        nonlocal players
+        nonlocal marbles
+        nonlocal score
+        nonlocal marble_current
+
+        j1 = marble_current
+        for i in range(7):
+            j1 = marbles[j1]['prev']
+        
+        marble_current = marbles[j1]['next']
+        j1p = marbles[j1]['prev']
+        j1n = marbles[j1]['next']
+
+        marbles[j1p]['next'] = j1n
+        marbles[j1n]['pred'] = j1p
+
+        player = round % players
+        score[player] += j1
+        score[player] += round
+
+#        print('removed marble {} between {} and {}'.format(j1,j1p,j1n))
+#        print('added {} and {} to player {}'.format(j1,round, player))
+
+    for r in range(count):
+       if (r % 23 == 0) and (r > 0):
+           rule_23(r)
+       else:
+           add_marble(r)
+
+    print(max(score))
+
+play(486, 7083300)
+