Counter

Author: stefmolin

rounds/1_histogram/baseline.py

@@ -4,11 +4,13 @@
 tokens) in a binary payload.
 """
 
-from collections import Counter, deque
+from collections import Counter
+from itertools import pairwise
 
 
 def compute_histogram(path: str) -> dict[bytes, int]:
     """Frequency of every 2-byte bigram in the file at ``path``."""
     with open(path, "rb") as f:
         data = f.read()
-    return Counter(deque(data, maxlen=2))
+
+    return Counter(bytes(bigram) for bigram in pairwise(data))