bowling: fix some minor grammar
There was a missing article 'a' in the beginning. The phrasing "after the
throw" is a little confusing. Does this mean either the 2nd or 3rd throws?
No, it means they are knocked down by THIS throw. Update accordingly.
Score a bowling game.
-Bowling is game where players roll a heavy ball to knock down pins
+Bowling is a game where players roll a heavy ball to knock down pins
arranged in a triangle. Write code to keep track of the score
of a game of bowling.
@@ -16,15 +16,15 @@ cases for the tabulation of a frame.
frame. In this case the score for the frame is the number of pins
knocked down.
-* A spare is where all ten pins are knocked down after the second
+* A spare is where all ten pins are knocked down by the second
throw. The total value of a spare is 10 plus the number of pins
knocked down in their next throw.
-* A strike is where all ten pins are knocked down after the first
+* A strike is where all ten pins are knocked down by the first
throw. The total value of a strike is 10 plus the number of pins
- knocked down in their next two throws. If a strike is immediately
- followed by a second strike, then we can not total the value of the
- first strike until they throw the ball one more time.
+ knocked down in the next two throws. If a strike is immediately
+ followed by a second strike, then the value of the first strike
+ cannot be determined until the ball is thrown one more time.
Here is a three frame example:
