Day 27 of 31-Day May LeetCode Challenge
1 min readMay 27, 2020
Given a set of N
people (numbered 1, 2, ..., N
), we would like to split everyone into two groups of any size.
Each person may dislike some other people, and they should not go into the same group.
Formally, if dislikes[i] = [a, b]
, it means it is not allowed to put the people numbered a
and b
into the same group.
Return true
if and only if it is possible to split everyone into two groups in this way.