This repo is solving the challenge from iugu at https://github.com/iugu/account_movement_challenge
To run the code, just go to the folder in your terminal and execute ruby main.rb
Then you will questions about the name of the files, if you have your custom input, just type the name or path you want to use,
if you are using the tests that I left here, it will be contas.csv and then transacoes.csv
The result will be shown as a Hash, with the Account ID and the final account balance in centavos de reais
The only lib I'm using is the 'csv' from ruby, to read the CSV files