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Notes

for coffee break ☕

Story 4 Mar 2026

The Trap of 'Optimal' (The Missing Guide, Part II)

Every 'best' solution chose what to sacrifice. It just never told you.

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Story 1 Mar 2026

The Missing Guide to Problem Solving (That Leetcode Exposed)

Why most leetcode prep builds the wrong skill, and the method that actually works.

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Story 25 Feb 2026

Taking a Sabbatical

Why I'm taking a year off, and what I'm doing with it.

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Story 5 Apr 2024

My path of learning-to-build web app

Personal experience of grinding the web app development.

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Story 14 Jan 2024

How I started the journey? - Part I.3

Stories about my journey as a part-time Ph.D.

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Story 10 Jan 2024

How I started the journey? - Part I.2

Stories about my journey as a part-time Ph.D.

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Story 5 Dec 2023

How I started the journey? - Part I.1

Stories about my journey as a part-time Ph.D.

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© 2026 Zheng Shi