Password reset tokens have a lifespan of 24 hours, yours probably just expired.
To receive a new one, please use the upper right hand side 'Reset Password' menu item, or use this link: https://interview.stonesoup.tech/password/reset.
Please mention this, detailing what was unclear, either in a comment within your code, in the feedback form at the end, or via email at valentin.lungu@stonesouptech.com .
Review and grading is not automated and what interests us most is the algorithm itself; therefore input structure and acquisition are left up to you.
Feel free to read it from standard input, a file, make HTTP requests, or simply make a blackbox function with input already acquired.
The synthax option is only there to help you with highlighting, it is neither submitted with your solution nor taken into account when reviewing.
If your chosen language synthax isn't an option, either select something that has similar highlighting or simply ignore it.
You can specify the language you have chosen in a comment in your solution.