How to proceed with the coding format

Please fill in the editor with code that meets the requirements. The goal is to write code that considers all processing, including exceptions.

• Check the description and conditions in the left column. Enter code into the editor according to the description.
• You can select the language for your answer from the pull-down menu in the upper right. Companies can narrow down the languages, so the selectable languages may differ depending on the problem.
• After writing the code, you can run test cases to check if your implementation is correct.

All test cases are executed by clicking the "▶ Run" button in the lower right part of the editor. Test cases can also be added by the examinee. Test cases may not comprehensively cover all exceptions, so you can add and check them yourself.

• Standard output for debugging purposes is also possible during implementation. The results of the standard output will be displayed along with the results of the test case execution.
• If you cannot solve it, you can use hints. In most cases, multiple hints are provided. Check them as needed and do your best.

Hints are displayed at the bottom of the left column. Please scroll down as needed to check them. The use of hints will be displayed in the interviewer's report.

• You can fill in the description in the lower left part of the answer screen. You can explain the background of your code implementation in natural language.
• Finally, click the "Submit Code" button to submit the assignment. You can improve and submit multiple times even after submission.

If the examining company allows Web searches and ChatGPT during the exam, each service will be displayed on the right side of the answer screen.