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  1. -module(main).
  2. -export([start/0]).
  3.  
  4. start() ->
  5.   return_positions([a, b, c]).
  6.  
  7. return_positions(X) ->
  8.   return_positions(X, [], 1).
  9. return_positions([], Out, _I) ->
  10.   lists:reverse(Out);
  11. return_positions([Head | Tail], Out, I) ->
  12.   return_positions(Tail, [{Head, I}] ++ Out, I + 1).
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
/home/mwqBOC/prog.beam: Module name 'main' does not match file name 'prog'
stdout
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Standard output is empty
https://ideone.com/gotQw
language:
Erlang (erl 21.3.8)
created:
14 years ago
visibility:
public

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