Create 1721-swapping-nodes-in-a-Linked-List.java

[viet2307]

• File(s) Modified: java/1721-swapping-nodes-in-a-Linked-List.java
• Language(s) Used: Java
• Submission URL: https://leetcode.com/problems/swapping-nodes-in-a-linked-list/submissions/1073319925/

Important

Please make sure the file name is lowercase and a duplicate file does not already exist before merging.

[sujal-goswami]

There is no need to write Auther, Name, etc only Time and space Complexity is fine.

[viet2307]

Sorry, force of habit.
I removed unnecessary information, please give it a check if you have time.

[sujal-goswami]

Please check the already written solution If your solution uses a different approach then you can just add your solution just below separately from the previous one.

[viet2307]

When I submit a PR there are no solution for this question yet, so it seems it was merged before mine.
Anyway, I'll close this PR then, cheers.