solved issue #85

[KangHyeoni]

Resolves Issue #85

Description

Find the maximum XOR value of subarray of given array using Trie.

How to run

g++ -std=c++14 -o xor maximum_subarray_xor.cpp
./xor

Checklist

• [x] Code compiles correctly.
• [x] Changes are tested properly.
• [x] Followed the Contributing guidelines.

[KangHyeoni]

@DeltaCube23