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kenzo0107/divmod_inject.rb

Last active November 22, 2019 06:01
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Ruby inject
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divmod_inject.rb
def div_inject(r)
[10_000, 5_000, 2_000, 1_000, 500, 100, 50, 10, 5, 1].inject(r){|(*a, r), d|
a + r.divmod(d)
}
end
p div_inject(123_456) # [12, 0, 1, 1, 0, 4, 1, 0, 1, 1, 0]
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