Blog

April~July 2024, primarily based on original solution records, including ABC 348 E/F, 350 D/E, 351 D/E/F, 357 D/E/F, 358 C/E/G, 360 E.

Solutions from Jan-Jul 2024, focusing on construction, bit operations, and greedy problems from Codeforces.

Solutions from Dec 2023 to Jul 2024, covering prefix sums, strings, and transformation-oriented Codeforces problems.

Solutions from Jan-Sep 2024, focusing on number theory, game theory, combinatorics, and EDU problems from Codeforces.

Primarily based on original solution records, including Zhengzhou Invitational, Kunming Invitational, HDU 2973, and Luogu B3645.

December 2023 to August 2024, primarily based on original solution records, covering bookmarked winter contests, weekly contests, and multi-school problems.

Mindfulness, cognitive training, and a healthy lifestyle may help sharpen your focus.

A deep dive into the mathematical principles behind HyperLogLog and its Redis implementation