Write a Node.js script at /app/solve.js that uses the extra-set library to perform set operations.

Write a Node.js script at /app/solve.js that uses the extra-set library to perform set operations.: a task in rts-1k-rootless-apptainer: RTS-1K: offline rootless Apptainer release (Harbor dataset). What the agent is asked, how it is graded, what it runs in, and its files.