Update coordinate_compression.py

MaximSmolskiy · web-flow · commit 7469f71f671a · 2025-08-27T21:53:43.000+03:00
diff --git a/data_compression/coordinate_compression.py b/data_compression/coordinate_compression.py
@@ -115,7 +115,7 @@ def decompress(self, num: int) -> int | float | str:
         >>> cc.decompress(5)  # Compressed coordinate out of range
         -1
         """
-        return self.reverse_map[num] if num < len(self.reverse_map) else -1
+        return self.reverse_map[num] if 0 <= num < len(self.reverse_map) else -1
 
 
 if __name__ == "__main__":
