Dimethyl Blog

This post introduces how to display a postcard map in a Hexo blog using data exported from Postcrossing or in a custom format.

This is a write-up for ZJUCTF 2025. The original challenge descriptions can be found at https://mp.weixin.qq.com/s/Z91DTlJtvWClyCfnHpXTOQ for ZJU students or https://notes.sjtu.edu.cn/s/nji8es_7e for SJTU students.

All solution code and some challenge files referenced below are collected in the repository MingchenDai/ZJUCTF-2025.

Some notes on C++ STL.

This post is aimed to record some interesting LeetCode problems.

Reference: Regular Expressions Tutorial

Regular expressions is a sequence of characters that forms a search pattern and own common shortands regex or regexp.

Engines are programs that can process regular expressions, trying to match the pattern to the given string. Different engines may have different syntax and features.

One of explorations in winter holiday is learning the usage of git by Learn Git Branching, which provides a visualized way to learn.

This is a document I organized while reviewing for my C++ final exam, focusing only on the key points.