Remove duplicate code

diff --git a/puzzles/allergic_cliffs/l4.py b/puzzles/allergic_cliffs/l4.py
index 798a7b9cd22ff8c22012be3298e4e9a97054fbcb..7f2d5382e838942c4da892f2ee81a9b2a03e4b76 100644 (file)
--- a/puzzles/allergic_cliffs/l4.py
+++ b/puzzles/allergic_cliffs/l4.py
@@ -34,7 +34,7 @@ class Instance:
                def check_split(rule):
                        cts = {cliff: 0 for cliff in Cliff}
                        for z in zoombinis:
-                               cts[Instance.assign(z, rule)] += 1
+                               cts[assign(z, rule)] += 1
                        return all(v == 8 for v in cts.values())
 
                self.cand_rules = frozenset(
@@ -46,11 +46,6 @@ class Instance:
                        if check_split(rule)
                )
 
-       @staticmethod
-       def assign(zoombini, rule):
-               (cliff, attrs) = rule
-               return cliff if zoombini.attrs & attrs else cliff.other()
-
        def filtered_rules(self, rules, across):
                def check(rule):
                        (cliff, attrs) = rule
@@ -73,7 +68,7 @@ class Instance:
        def cliff_scores(self, z):
                cts = {cliff: 0 for cliff in Cliff}
                for rule in self.cand_rules:
-                       cts[Instance.assign(z, rule)] += 1
+                       cts[assign(z, rule)] += 1
                return cts
 
        def next_pair(self):