Pretty boxes (PBOXES) from november long challenge?

[mayankgagrwl]

How is that related?

[erty]

@ssjgz Can you please explain your solution for PBOXES
https://www.codechef.com/viewsolution/27824499
Thanks

[ssjgz]

No, sorry - it’s only a partial solution, and a complete dead-end - no point taking time to explain something like that