1. History of submissions
  2. (plaintext version)

Ray Hao

@rayhaorui

China, Beijing

Joined Jan 2025

World Rank: #43450 (0.5 points)

Institution: Tsinghua University

Activity over the last year

Effectiveness

 Problems solved
3
 Solutions submitted
4

Problems

List of solved classical problems:

BARN
DIFERENC
KATHTHI

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