Graph Speedrun - Part 2 - Graph / Speedrun

Problems
1
GraphSpeedrunGraph Speedrun - Part 2Go PremiumNext Up: Two Pointers IntroductionLoading comments (error: un-configured {articleId})Join our community on Discord
This is a companion discussion topic for the original entry at https://algo.monster/problems/graph-speedrun2/
2

in explanation it says For example, '/' means that north joins west and south joins east. , but in options ‘N’ unions ‘E’

edit : found it , its that != comparison