You cannot submit for this problem because the homework's deadline is due.

Compile requirements

Please submit a zip or tar file containing kdtree.hpp. You don't need extra files for these test cases.
You must make sure that your code compiles successfully on a Linux operating system with g++ and the options -std=c++1z -Wconversion -Wall -Werror -Wextra -pedantic.

Please note that JOJ is not an efficient way to debug, and we recommend you to write your own test cases. Enjoy your project.