Add solution to problem 95. The running time on hackerrank is 6.9s, which is due to too much scala overhead. Should try to optimize it.
Add solution to problem 95. The running time on hackerrank is 6.9s, which is due
to too much scala overhead. Should try to optimize it.

advancedxy/hackerrank,advancedxy/hackerrank,advancedxy/hackerrank