Codeforces Round 896 (Div. 2)

D1. Candy Party (Easy Version)

D2. Candy Party (Hard Version)

https://codeforces.com/contest/1869/problem/D1

https://codeforces.com/contest/1869/problem/D2

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2023牛客暑期多校训练营7

C - Beautiful Sequence

https://ac.nowcoder.com/acm/contest/57361/C

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