9 posts in total.

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2023

AtCoder Beginner Contest 287 01-28 Educational Codeforces Round 142 (Rated for Div. 2) 01-25

2022

2022 CCPC Weihai Site 11-07 2018 CCPC Finals 10-19 AtCoder Beginner Contest 266 08-30 AtCoder Beginner Contest 259 07-13 AtCoder Regular Contest 059 06-29

2021

Codeforces Round #738 (Div. 2) 08-18 Codeforces Round #723 (Div. 2) 03-29