2023牛客暑期多校训练营7

I - We Love Strings

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

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Codeforces Round 315 (Div. 1)

A. Primes or Palindromes?

https://codeforces.com/contest/568/problem/A

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Codeforces Round #844 (Div. 1 + Div. 2, based on VK Cup 2022 - Elimination Round)

D. Many Perfect Squares

https://codeforces.com/contest/1782/problem/D

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Codeforces Round #828 (Div. 3)

E1. Divisible Numbers (easy version)

https://codeforces.com/contest/1744/problem/E1

E2. Divisible Numbers (hard version)

https://codeforces.com/contest/1744/problem/E2

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Codeforces Round #827 (Div. 4)

G. Orray

https://codeforces.com/contest/1742/problem/G

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