Here are my blogs.
最少定长区间覆盖点贪心最优证明
2026-09-14
数轴上有 n 个点，要求使用尽可能少的长度为 k 的闭区间覆盖所有点。证明简单的贪心算法就能得到最优解。
从博弈论的角度理解量词交替
2026-04-07
通过把含有交替的量词的命题看成两名玩家的博弈，这些烧脑的命题也变得容易理解、符合直觉了一些。
Calculating the Inverse of a Matrix
2025-10-19
In this article, I introduced how to calculate the inverse of a matrix by creating an augmented matrix and calculate its RREF, and why does it work.