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  1. # your code goes here
  2.  
  3. puts "apple".instance_eval{(1..size).map{|i|dup.insert(i,",")}}
  4.  
Success #stdin #stdout 0.01s 7416KB
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stdin
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Standard input is empty
stdout
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a,pple
ap,ple
app,le
appl,e
apple,
https://ideone.com/6LVi8s
language:
Ruby (ruby 2.5.5)
created:
9 years ago
visibility:
secret

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