- Difficulty: Hard
- Tags: LeetCode, Hard, Union Find, Array, Hash Table, Math, Number Theory, leetcode-952, O(f * n), O(p + n)
Problem
You are given an integer array of unique positive integers nums
. Consider the following graph:
- There are
nums.length
nodes, labelednums[0]
tonums[nums.length - 1]
, - There is an undirected edge between
nums[i]
andnums[j]
ifnums[i]
andnums[j]
share a common factor greater than1
.
Return the size of the largest connected component in the graph.
Example 1:
Input: nums = [4,6,15,35] Output: 4
Example 2:
Input: nums = [20,50,9,63] Output: 2
Example 3:
Input: nums = [2,3,6,7,4,12,21,39] Output: 8
Constraints:
1 <= nums.length <= 2 * 104
1 <= nums[i] <= 105
- All the values of
nums
are unique.