From 65d17b9850a251670fc977ab957b82f61bb0dac9 Mon Sep 17 00:00:00 2001
From: Andreas Koepf <andreas.koepf@provisio.com>
Date: Tue, 25 Feb 2025 23:27:01 +0100
Subject: [PATCH] add None/empty check to score_answer of cryptarithm

---
 reasoning_gym/algorithmic/cryptarithm.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/reasoning_gym/algorithmic/cryptarithm.py b/reasoning_gym/algorithmic/cryptarithm.py
index bfa9baa8..15264254 100644
--- a/reasoning_gym/algorithmic/cryptarithm.py
+++ b/reasoning_gym/algorithmic/cryptarithm.py
@@ -223,6 +223,9 @@ class CryptarithmDataset(ProceduralDataset):
         Returns:
             float: The computed score between 0.0 and 1.0.
         """
+        if not answer:
+            return 0.0
+
         correct_mapping = {}
         correct_answer_str = entry["answer"]  # e.g. "A=1,B=7,..."
         for pair in correct_answer_str.split(","):