# Fuel Transformation XML ## Problem statement Every employee of ABC Corp receives an unlimited fuel allowance. Employees are required to send a record every time they fill up their vehicles. These records are appended to the same XML file and processed at the month's end. As a member of the digital operations team, your task is to read this XML file and write the results to another XML file. The output file should contain an entry for each employee with the following details: You are given two `string` arguments. 1. Input XML file path. 1. Output XML file path. Input XML file content will have the following XML schema. ```xml ``` Your task is to transform the XML input to the following XML format and write the content to the given path. The output file should contain an entry for each employee, sorted in ascending order by the `employeeId`. ```xml ``` ## Constraints - Number of fill-up records `n` in the input XML file: 0 <= n <= 1000 - Number of employees in the company: 97 - Gas price is per gallon - No missing fill-up records ## Example 1 - Input: `example01_input.xml` ```xml 230 18.561 4.56 500 19.345 4.89 ``` - Output: `example01_output.xml` ```xml 2 179.23521 37.906 270 ``` ## Example 2 - Input: `example02_input.xml` ```xml 4089 21.682 3.46 6582 15.248 4.56 4127 4.221 3.40 4349 11.192 4.10 6767 8.696 3.34 4547 9.197 2.90 ``` - Output: `example02_output.xml` ```xml 4 161.92962 46.292 458 2 98.57552 23.944 185 ``` ## Hints - Use the [`ballerina/io` module](https://lib.ballerina.io/ballerina/io/latest) to read/write XML files. - These [XML templates](https://ballerina.io/learn/by-example/xml-templates) can be used to create XML values. - The [XML data model](https://ballerina.io/learn/by-example/xml-data-model) - [XML operations](https://ballerina.io/learn/by-example/xml-operations) - [XML subtypes](https://ballerina.io/learn/by-example/xml-subtyping) - Use [XML navigation expressions](https://ballerina.io/learn/by-example/xml-navigation) to extract data from the XML payload. - [Combining XML templates and queries](https://ballerina.io/learn/by-example/xml-templates-and-query) - [XML namespaces](https://ballerina.io/learn/by-example/xml-namespaces) and [XML namespace declarations](https://ballerina.io/learn/by-example/xmlns-declarations) - [Ballerina table syntax](https://ballerina.io/learn/by-example/table)