1. History of submissions
  2. (plaintext version)

Sihan Ren

@hgjh

China, Beijing

Joined Sep 2021

World Rank: #31882 (0.8 points)

Institution: no

Activity over the last year

Effectiveness

 Problems solved
3
 Solutions submitted
7

Problems

List of solved classical problems:

BACKUP
BST
INS14H

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