26 lines
442 B
OCaml
26 lines
442 B
OCaml
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let is_alpha c =
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c >= 'a' && c <= 'z' ||
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c >= 'A' && c <= 'Z'
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let rec odd () =
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let c = input_char stdin in
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if is_alpha c
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then (let e = odd () in print_char c; e)
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else (c)
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let rec even () =
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let c = input_char stdin in
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if is_alpha c
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then (print_char c; even ())
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else print_char c
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let rev_odd_words () =
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while true do
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even ();
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print_char (odd ())
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done
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let () =
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try rev_odd_words ()
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with End_of_file -> ()
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