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[Sync Iteration] julia/currency-exchange/1 #20

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[Sync Iteration] julia/currency-exchange/1 #20

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32 changes: 32 additions & 0 deletions solutions/julia/currency-exchange/1/currency-exchange.jl
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Original file line number Diff line number Diff line change
@@ -0,0 +1,32 @@
function exchange_money(budget, exchange_rate)
return budget / exchange_rate
end

function get_change(budget, exchanging_value)
return budget - exchanging_value
end

function get_value_of_bills(denomination, number_of_bills)
return denomination * number_of_bills
end

function get_number_of_bills(amount, denomination)
return div(amount, denomination)
end

function get_leftover_of_bills(amount, denomination)
return amount - get_value_of_bills(denomination, get_number_of_bills(amount, denomination))
end

function exchangeable_value(budget, exchange_rate, spread, denomination)
return get_value_of_bills(
denomination,
get_number_of_bills(
exchange_money(
budget,
exchange_rate * (1 + spread / 100)
),
denomination
)
)
end