Score a bowling game.
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.
The game consists of 10 frames. A frame is composed of one or two ball throws with 10 pins standing at frame initialization. There are three cases for the tabulation of a frame.
An open frame is where a score of less than 10 is recorded for the 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 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 by the first throw. The total value of a strike is 10 plus the number of pins 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:
|Frame 1||Frame 2||Frame 3|
|X (strike)||5/ (spare)||9 0 (open frame)|
Frame 1 is (10 + 5 + 5) = 20
Frame 2 is (5 + 5 + 9) = 19
Frame 3 is (9 + 0) = 9
This means the current running total is 48.
The tenth frame in the game is a special case. If someone throws a strike or a spare then they get a fill ball. Fill balls exist to calculate the total of the 10th frame. Scoring a strike or spare on the fill ball does not give the player more fill balls. The total value of the 10th frame is the total number of pins knocked down.
For a tenth frame of X1/ (strike and a spare), the total value is 20.
For a tenth frame of XXX (three strikes), the total value is 30.
To ensure the correctness of your implementation, see test.sh with usage:
sh test.sh /path/to/program
It is expected that your program takes the number of pins knocked down per roll as command-line arguments.
Your program must either exit success and print the final score on STDOUT, or else exit with one of the following codes:
1: One roll knocked down more pins than were standing
2: More rolls were provided than would be present in a complete game
3: Fewer rolls were provided than would be present in a complete game
All submissions must contain a statement that the code is your own work (groups are ok!) and placing the code under either CC0, CC-BY, or CC-BY-SA. Submissions are by email to firstname.lastname@example.org. Attaching each source file is preferred, but tarballs or git URLs will also be accepted (especially when directory structure matters). Submissions may be in any programming language that can be compiled or interpreted on a Debian Stable system.
If relevant, please make it clear what name, pseudonym, or group name you would like your submission attributed to. This name (and the code content of your submission) will be made public.
Submissions are due by and the winning teardown post will be published the following month.
This excercise and its tests based on https://github.com/exercism/rust/tree/master/exercises/bowling, original license:
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