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A programming puzzle includes a goal, a partially completed program, and rules outlining how the program can be modified. The program is specifically designed to make achieving the goal difficult. An answer to a programming puzzle takes the program and modifies it only in ways specified in the rules, so that the goal is achieved.

1 vote

Execute prints backwards

F# "" |> sprintf "Line1 %s" |> sprintf "Line2 %s" |> sprintf "Line3 %s" |> sprintf "Line4 %s" |> printfn "%s"
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