Question
Paramenters:
-
array of currency conversion rates. E.g.
['USD', 'GBP', 0.77]which means 1 USD is equal to 0.77 GBP -
an array containing a 'from' currency and a 'to' currency
Given the above parameters, find the conversion rate that maps to the 'from' currency to the 'to' currency.
Your return value should be a number.
Example:
You are given the following parameters:
-
Rates:
['USD', 'JPY', 110]['USD', 'AUD', 1.45]['JPY', 'GBP', 0.0070] -
To/From currency
['GBP', 'AUD']
Find the rate for the 'To/From' curency. In this case, the correct result is 1.89.
[['USD', 'JPY', 110], ['USD', 'AUD', 1.45], ['JPY', 'GBP', 0.0070],['ABC', 'EFG', 200],['ABC', 'USD', 0.5]]
['ABC', 'GBP']
