I hope you enjoyed the problems! You can give feedback on each problem and also choose your favourite below. This could help me and other problemsetters understand what type of problems you want to see on Codeforces.

**Hint 1**

**Hint 2**

**Hint 3**

**Tutorial**

**Feedback**

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**Hint 2**

**Hint 3**

**Hint 4**

**Hint 5**

**Tutorial**

**Feedback**

**Hint 1**

**Hint 2**

**Hint 3**

**Tutorial**

**Feedback**

**Hint 1**

**Hint 2**

**Hint 3**

**Hint 4**

**Hint 5**

**Hint 6**

**Tutorial**

**Feedback**

**Hint 1**

**Hint 2**

**Hint 3**

**Hint 4**

**Tutorial**

**Feedback**

**Hint 1**

**Hint 2**

**Hint 3**

**Hint 4**

**Hint 5**

**Hint 6**

**Hint 7**

**Tutorial**

**Feedback**

Now you can choose your favourite problem from the ones you solved during the contest or upsolved after it.

**UPD:** Don't forget to check out ak2006's video tutorials on his channel.