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  1. puts $<.read.scan(/\w+/).group_by(&:itself).map {|a, b| '%s %d' % [a, b.size]}
Success #stdin #stdout 0s 6320KB
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stdin
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Hoge
Fuga
Foo
Fuga
Foo
Hoge
Bar
Fuga
stdout
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Hoge 2
Fuga 3
Foo 2
Bar 1
https://ideone.com/Sw6k17
language:
Ruby (ruby 2.5.5)
created:
5 years ago
visibility:
secret

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