git.diff

diff --git a/hash-tables/ex1/ex1.py b/hash-tables/ex1/ex1.py
index 3039cf3..e7e289d 100644
--- a/hash-tables/ex1/ex1.py
+++ b/hash-tables/ex1/ex1.py
@@ -1,14 +1,14 @@
 def get_indices_of_item_weights(weights, limit):

-  hash_table = { i : weights[i] for i in range(0, len(weights) ) }
-  hash_table2 = {y:x for x,y in hash_table.items()}
+  hash_table = { weights[i] : i for i in range(len(weights)) }

-  for weight in hash_table2:
+  for i in range(len(weights)):
     try:
-      twoWeights = hash_table2[limit-weight]
-      return (hash_table2[limit-weight], hash_table2[weight])
-    except KeyError:
-      print('Try again...')
+      return (hash_table[limit-weights[i]], i)
+    except KeyError:
+      pass
+
+  return ()

 if __name__ == '__main__':
   # You can write code here to test your implementation using the Python repl
diff --git a/hash-tables/ex2/ex2.py b/hash-tables/ex2/ex2.py
index 67b7390..61bb7e5 100644
--- a/hash-tables/ex2/ex2.py
+++ b/hash-tables/ex2/ex2.py
@@ -13,6 +13,8 @@ def reconstruct_trip(tickets):
     route.append(current)
     if current in hash_table:
       current = hash_table[current]
+    else:
+      return []
   return route

 if __name__ == '__main__':