Question
You are given n people (0..n-1) and a list of dislike pairs [a, b] meaning a and b refuse to be in the same group. Determine whether everyone can be split into exactly two groups so that no disliking pair shares a group. Return true if possible, false otherwise. This is equivalent to testing whether the dislike graph is bipartite. The graph may be disconnected; duplicate dislike pairs may appear; no self-dislikes.
possible_two_groups(n: int, dislikes: list[list[int]]) → bool[4,[[0,1],[0,2],[1,3],[2,3]]]outtrueState your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.
Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.