1. History of submissions
  2. (plaintext version)

dong ruiyu

@dongruiyu

China, hangzhou

Joined Jul 2025

World Rank: #48625 (0.4 points)

Institution: xyd

Activity over the last year

Effectiveness

 Problems solved
4
 Solutions submitted
6

Problems

List of solved classical problems:

LIGHTIN
NORMA2
PR003004
ZSUM

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