Expert C++ Programmer for Data Structures -- 2

I'm looking for a high-rated competitive programmer on HackerRank, specializing in C++. The focus is on solving complex problems, particularly around data structures, with an emphasis on core concepts.

Requirements:
- High rating on HackerRank or similar platforms
- Expertise in C++ and data structures, especially all concepts
- Competitive programming certificates or verifiable high-level profiles

Ideal Skills and Experience:
- Proven track record in competitive programming
- Strong problem-solving skills
- Ability to explain complex concepts clearly

Please provide certificates or profiles for verification.