solved the issue TheAlgorithms#6916

Author: CoderRounak

maths/jaccard_similarity.py

@@ -70,11 +70,17 @@ def jaccard_similariy(setA, setB, alternativeUnion=False):
         else:
             union = setA + [element for element in setB if element not in setA]
 
+        if len(union)==0:
+            return -1
         return len(intersection) / len(union)
 
 
 if __name__ == "__main__":
 
     setA = {"a", "b", "c", "d", "e"}
     setB = {"c", "d", "e", "f", "h", "i"}
-    print(jaccard_similariy(setA, setB))
+    if jaccard_similariy(setA, setB)!=-1:
+        print(jaccard_similariy(setA, setB))
+    else:
+        print("Length of union of the sets are 0")
+