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 year’s round of Kick Start was much easier than in previous years—easy enough that I solved every problem, even though I could not solve yesterday’s LeetCode Problem D.
The strongest people on the leaderboard finished all of them in as little as 16 minutes. After writing these notes, I realised I have been getting worse this year. ^ - ^
I have played a few games with Atcoder recently, and I still need to make up for it in the past few days. It’s been a long time since I last updated the solution.
I remember that during the New Year, I was still praying for peace and prosperity for the country and the people. As a result, an epidemic broke out in my motherland, and I was not in good health. My recent realization is that the destiny of the individual and the destiny of the country are closely linked. I hope that the land of China will be safe and pass as soon as possible, and the country and the people will be safe and the weather will be smooth.
After many years, I have started catching up on Educational Rounds from the first one. Computational geometry is so hard—why am I so weak at it?
When I finish Educational, I will work through the Andrew series. Let us see when I finally complete it.
I want to talk about my experience in the middle of the night.
There is always a gap between the ideal state and reality.
If I do not persist in expressing some dissatisfaction, bitterness, or despair about reality, life becomes so hypocritical that it has no sincerity at all.
Create at: 2017-10-06 14:35:49
There is still plenty of drama.
There are still many interesting DP questions on Topcoder, but it would be great if there were more editors (what are you going to do…)