- Converted preprocessor directives to executable Python code
- Dynamic analysis showed that we can bruteforce one character at a time by checking for `Q0` to `Q7`

[Full Writeup](https://zeyu2001.gitbook.io/ctfs/2021/google-ctf-2021/cpp)

Original writeup (https://zeyu2001.gitbook.io/ctfs/2021/google-ctf-2021/cpp).