Ternary Search [C++]

[sirjan13]

This issue is about Ternary Search.

• [x] Issue Title is in form Algo/DS Name [Language].
• [x] I searched or browsed the repo’s other issues to ensure this is not a duplicate.
• [x] This Algo/DS is worth adding to this repository.
• [x] Assign this issue to me (I want to work on this).
• [x] I ensure that I am not already assigned to 2 or more issues.
• [x] I will send my PR only after I'm assigned to this issue by any maintainer.
• [x] I understand that I will be unassigned from this issue if I fail to send a PR for this within a week.

[sirjan13]

Am i assigned this?

[Monal5031]

@sirjan13 GFI 👍

[keshavagarwal17]

@iiitv/project-maintainers please assign this to me.