1. Initial Screening A 15-minute chat with the recruiter on past experience and how the interview process would look like.

2. Data Structures and Algorithms Round Typical problem-solving round with medium- to high-level questions.

Question

Parameters:

• An 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 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], ['US', 'AUD', 1.45], ['JPY', 'GBP', 0.0070]
• To/From currency: ['GBP', 'AUD']

Find the rate for the 'To/From' currency. In this case, the correct result is 1.89.