Personal site · London
I’m a crypto enthusiast, a long-term Bitcoin holder and I was passionate about smart contracts, Solidity auditing and competitive programming. I build and share what I learn along the way. I’m currently creating videos and sharing ideas on Twitter and YouTube.
Donations on Solana (SOL, USDC, or USDT): BduwmK79t16aJEo3s9PsSVfK5xDe3YqXrFAYqg9y5ALa
I enjoy smart contracts and Solidity auditing. You can find my work on Code4rena and Sherlock.
For code and ongoing notes, visit GitHub and my progress reports.
I also share smart-contract lectures on Bilibili.
I love competitive programming. Here are my profiles and archives:
Beijing University of Posts and Telecommunications
Bachelor’s in Computer Science · 2011–2015
Master’s in Information Security · 2015–2018
While at university, I maintained a monthly life summary on CSDN and a Chinese writing archive here.
Those posts are older, but they remain part of the record.
Notes on engineering, security, algorithms, and life.
This set of questions is relatively simple overall, with the first three questions worth 300, 400, and 600 points. Mainly I want to record question D.
Finally I figured out the tree DP of E.
How did Codeforces get to Round 416 already? That was fast.
A short record of this Div. 2 round.
Your life is so long.
I want to do so many things, but life turns out not to be as long as I want it to be.
Here is a summary of the problems that often arise in C++ syntax. . .
I did ARC073, but I haven’t done any questions in a long time. . . Why do I always feel that AtCoder’s questions are impossible to solve? Every time I solve them, they are so amazing. . .
A set of problems on CF GYM, reportedly only Div. 2 difficulty. The early ones were fine, but the later ones took a long time to finish.
There were two months left before my summer internship, with plenty to do: read more and exercise more.
I have just left Toutiao. The departure process took only twenty minutes, and just like that my employee badge was gone. When I tapped my card on the way back to school, I realised that we all move through corners of the city under different identities.
More notes from Cracking the Coding Interview.
Continuing my notes on Cracking the Coding Interview.