Need help in union find problem

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Need help in union find problem

Difference between en1 and en2, changed 1 character(s)

Hello all!↵
↵
Please help me in solving this problem: [CHAIN](https://www.spoj.com/problems/CHAIN/). Thank you.

Revisions

	Rev.	Lang.	By	When	Δ	Comment
	en2		leetcode07	2020-06-30 20:20:18	1	Tiny change: 's problem:[CHAIN](ht' -> 's problem: [CHAIN](ht'
	en1		leetcode07	2020-06-30 20:19:37	141	Initial revision (published)

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