diff --git a/.hash b/.hash
index bb3c9f4..38da6f8 100644
--- a/.hash
+++ b/.hash
@@ -1,14 +1,14 @@
 ainotes.cls,5927cc8
 year1/cognition-and-neuroscience/module1,0a378ad
 year1/cognition-and-neuroscience/module2,5927cc8
-year1/combinatorial-decision-making-and-optimization/module1,9d6b6aa
+year1/combinatorial-decision-making-and-optimization/module1,9ed085e
 year1/combinatorial-decision-making-and-optimization/module2,9d6b6aa
 year1/deep-learning,ef7ba6f
 year1/fundamentals-of-ai-and-kr/module1,79b3324
 year1/fundamentals-of-ai-and-kr/module2,79b3324
 year1/fundamentals-of-ai-and-kr/module3,79b3324
 year1/image-processing-and-computer-vision/module1,841f6ec
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+year1/image-processing-and-computer-vision/module2,d915f2c
 year1/languages-and-algorithms-for-ai/module2,9d6b6aa
 year1/languages-and-algorithms-for-ai/module3,9d6b6aa
 year1/machine-learning-and-data-mining,79b3324
diff --git a/year1/combinatorial-decision-making-and-optimization/module1/cdmo1.pdf b/year1/combinatorial-decision-making-and-optimization/module1/cdmo1.pdf
index 8ce3bd1..084a8b2 100644
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diff --git a/year1/image-processing-and-computer-vision/module2/ipcv2.pdf b/year1/image-processing-and-computer-vision/module2/ipcv2.pdf
index 2332464..419f105 100644
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