Updation of Dynamic Programming MD file

[saiumasankar]

PR Description

I added the additional approach(Tabulation Approach) and also introduced new important dynamic programming concept (Longest Increasing Subsequence).

Related Issues

• Closes More problems on Dynamic Programming. #575

Checklist

• I have gone through the contributing guide
• I have updated my branch and synced it with project main branch before making this PR

Undertaking

I declare that:

1. The content I am submitting is original and has not been plagiarized.
2. No portion of the work has been copied from any other source without proper attribution.
3. The work has been checked for plagiarism, and I assure its authenticity.

I understand that any violation of this undertaking may have legal consequences that I will bear and could result in the withdrawal of any recognition associated with the work.

• I Agree

[saiumasankar]

Last PR consists of additional things which are not related to the issue. I removed every thing which is not related to the issue and sending the PR again. I hope this is good. Please let me know if there is any issues in this.

[saiumasankar]

please assign the labels sir. I could not find this contribution in leaderboard of gssoc