Feature story
A highlighted piece from the latest round of writing.
Algorithm review template: turn “I solved it once” into “I own the method”
After each problem, record:
I am here contemplating,the past，the present and the future.
I write about real tradeoffs in AI, software, algorithms, and project delivery: how to do the work, and why the choice matters.
Editor’s note01—21
Less interested in trend summaries, more interested in process, judgment, and reusable methods.
Latest notes
Read all writing →Algorithm study roadmap: from intuition to a method library
The right roadmap is not just difficulty progression. It is capability progression.
Backtracking is constrained search, not random brute force
Backtracking becomes stable when three things are clear:
Before solving more problems, build complexity intuition first
Complexity intuition is the ability to look at an idea and quickly ask:
Binary search: the real challenge is monotonicity and boundary design
Binary search is not mainly about a loop template.
Graph problems become much easier once the model is explicit
Graph problems feel messy when the model is vague.
How I make a project actually move forward
Projects often stall not because people are idle, but because the work is not split clearly enough.
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