Answer by chepner for Haskell Data and type declarations
A RiderResults value is not a list; it's a triple of an ability, a name and a list of times. You need to unpack that value first before you can sum up the times stored in the value.totalTime (Rider ab...
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A bike race can be represented as a list of bike riders. Each rider is recorded with their ability class (High or Low), name, and the times in minutes that they finished in in each of their races, in...
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