First Unique Character

[shreyanshsinghparmar]

https://leetcode.com/problems/first-unique-character-in-a-string/

[Gourav-78]

I want to work on this issue..I can provide the solution in C/C++

[gauravsp22]

I want to work on this issue

[arpitbaheti2002]

I can solve this problem using C++.

[amankumar988]

I want to work on this issue using C.

[OctoplusNinja]

Assigned @amankumar988