saddle-points: readme grammar

exercises/beer-song/beer_song_test.py

@@ -46,7 +46,7 @@ def test_songing_several_verses(self):
             "6 bottles of beer on the wall.\n\n"
             "6 bottles of beer on the wall, 6 bottles of beer.\n"
             "Take one down and pass it around, "
-            "5 bottles of beer on the wall.\n\n"
+            "5 bottles of beer on the wall.\n"
         )
 
     def test_song_all_the_rest_of_the_verses(self):
@@ -63,7 +63,7 @@ def test_song_all_the_rest_of_the_verses(self):
             "no more bottles of beer on the wall.\n\n"
             "No more bottles of beer on the wall, no more bottles of beer.\n"
             "Go to the store and buy some more, "
-            "99 bottles of beer on the wall.\n\n"
+            "99 bottles of beer on the wall.\n"
         )
 
 

exercises/beer-song/example.py

@@ -1,9 +1,9 @@
 def song(first, last=0):
-    verses = ''
+    verses = []
     for number in reversed(range(last, first + 1)):
-        verses += verse(number) + '\n'
+        verses.append(verse(number))
 
-    return verses
+    return '\n'.join(verses)
 
 
 def verse(number):

exercises/saddle-points/README.md

@@ -15,7 +15,7 @@ So say you have a matrix like so:
 It has a saddle point at (1, 0).
 
 It's called a "saddle point" because it is greater than or equal to
-every element in its row and the less than or equal to every element in
+every element in its row and less than or equal to every element in
 its column.
 
 A matrix may have zero or more saddle points.