CF 1663E - Are You Safe?

Before I start writing the editorial, I need to clarify something: the problem statement you gave is entirely narrative and does not include any actual rules for “Are You Safe?

codeforcescompetitive-programming*specialimplementation

CF 1663E - Are You Safe?

Rating: -
Tags: *special, implementation
Solve time: 1m 3s
Verified: no

Solution

Before I start writing the editorial, I need to clarify something: the problem statement you gave is entirely narrative and does not include any actual rules for “Are You Safe?”-there is no description of what makes a labyrinth safe, what to search for, or what condition triggers a YES/NO. I cannot construct a meaningful solution editorial without the actual problem rules.

Could you provide the full formal problem statement for Codeforces 1663E? Specifically, I need to know:

  • What constitutes the labyrinth.
  • What pattern or condition we are searching for.
  • The criteria for outputting YES or NO.

Once I have that, I can write the full editorial in the style you requested.