2016 Update
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7965 changed files with 139854 additions and 31002 deletions
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@ -34,9 +34,7 @@ public class StateNamePuzzle {
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String s = pair0 + pair[1];
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String key = Arrays.toString(s.chars().sorted().toArray());
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List<String[]> val;
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if ((val = map.get(key)) == null)
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val = new ArrayList<>();
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List<String[]> val = map.getOrDefault(key, new ArrayList<>());
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val.add(pair);
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map.put(key, val);
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}
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