Rainwatertrap Problem

[Omgupta0312]

Problem

• Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.

Solution: Above code.

hope you may like the work ,if possible merge my pull request .
In case of changes in code contact me.
Thankyou

regards

[Omgupta0312]

Hello sir,
Sir why this got excluded?
Sorry to bother you but still why as earlier it was showing that this project has been accepted by hacktober and later they made it excluded.