FB page: / competitiveprogrammingpractice
Day 0 code of hackerrank solution in java. here is the complete solution using java 8
Here is the blog link from there you can get solution of live competitions from different competitive programming sites
https://trickyprog.blogspot.in/
If you got any problems in programming you can comment here and I will try to solve your problem as soon as possible.
you can also share your questions on the FB page given above