create: 0785-is-graph-bipartite.java, update: 0912-sort-an-array.java, update: 2130-maximum-twin-sum-of-a-linked-list.java, update: 2544-alternating-digit-sum.java

[faisalsaifii]

• File(s) Modified: 0785-is-graph-bipartite.java, 0912-sort-an-array.java, 2130-maximum-twin-sum-of-a-linked-list.java, 2544-alternating-digit-sum.java
• Language(s) Used: java
• Submission URL: https://leetcode.com/problems/is-graph-bipartite/submissions/953464058/

[faisalsaifii]

Some files didn't have the extension so I just added those. @a93a can you please merge the PR?

[a93a]

Can you provide the submission URL for all the problems, thanks.

[faisalsaifii]

Submission URLs for the rest of the files:

https://leetcode.com/problems/alternating-digit-sum/submissions/907310402/ https://leetcode.com/problems/sort-an-array/submissions/941353307/ https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list/submissions/948484943/

[faisalsaifii]

@a93a Review the PR please