Given the number of pins knocked down in each round by a player, calculate the total score for that player.

Explanation of scoring system with examples here:

http://en.wikipedia.org/wiki/Ten-pin_bowling#Scoring

Example Input:

5 3
X
4 /
1 5
- 4

Example Output

48 (Calculated in my head, so could be wrong!)

What do you think? Has any site done this before?

Hmm, this post looks like it might be related to a perl golf challenge for a ten-pin bowling score calculator: http://www.nntp.perl.org/group/perl.golf/2111

I can't find the original contest though.

OK, it has been done before.

:(