SashaT9's blog

By SashaT9, 4 months ago, In English

Hello everyone!

I invite you to the contest where I authored all the problems. There are tasks that couldn't make it to the Official Codeforces Round. But they are still not that bad :)

I hope you enjoy the problems. Thanks for participating!

If you have any feedback or suggestions, please feel free to leave them in the comments. Your feedback will help improve my future contests.

UPD: My apologies! The author's idea for problem D was incorrect. I hope that the solution is now correct. All the submissions for this problem were rejudged, and three samples were added.

UPD2: Problem D has been hopefully fixed. Many thanks to juliany2 for detecting and correcting the problem.

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Announcement of SashaT9 Contest 1
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By SashaT9, history, 4 months ago, In English

1857A - Array Coloring

Author: SashaT9, prepared: SashaT9, Skillful_Wanderer

Tutorial
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1857B - Maximum Rounding

Author: SashaT9, prepared: FBI, Skillful_Wanderer

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1857C - Assembly via Minimums

Author: SashaT9, prepared: SashaT9, Skillful_Wanderer

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1857D - Strong Vertices

Author: Pa_sha, prepared: SashaT9, Skillful_Wanderer

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1857E - Power of Points

Author: SashaT9, prepared: SashaT9, Skillful_Wanderer

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1857F - Sum and Product

Author: Pa_sha, prepared: Pa_sha, Skillful_Wanderer

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1857G - Counting Graphs

Author: SashaT9, prepared: SashaT9, Skillful_Wanderer

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By SashaT9, 5 months ago, In English

Many thanks to miaowtin and FBI for their invaluable help and support in the preperation of this blog. Unfortunately, this blog is not currently completed, but we encourage everybody to share their solutions to these and other problems of the section in comments. And last but not least thanks to pllk for maintaining CSES.

Shortest Subsequence

Prerequisites
Tutorial
Implementation

Swap Game

Prerequisites
Tutorial
Implementation

Prüfer Code

Prerequisites
Tutorial
Implementation

Acyclic Graph Edges

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Tutorial
Implementation

Multiplication Table

Prerequisites
Tutorial
Implementation

Advertisement

Prerequisites
Tutorial
Implementation

Special Substrings

Prerequisites
Tutorial
Implementation

Maximum Xor Subarray

Prerequisites
Tutorial
Implementation

Movie Festival Queries

Prerequisites
Tutorial
Implementation

Binary Subsequences

Prerequisites
Tutorial
Implementation

Programmers and Artists

Prerequisites
Tutorial

Bit Substrings

Prerequisites
Tutorial
Implementation

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