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Technical notes about competitive programming, development, and things I have learned.

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MM166 Participation Log

About Topcoder Marathon Match 166

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About RECRUIT Nihonbashi Half Marathon 2026 Summer (AHC069)

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About ABC468

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About ABC467

2026/07/16

About Codeforces Round 1110

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About Codeforces Round 1109

2026/07/12

About ARC224--

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About ABC466

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About Repovive Starter Round 4

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About ABC465

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Participation report and problem analysis for the ICPC 2026 Domestic Qualifiers

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Regarding Codeforces Round 1107

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About of Codeforces Round 1103