Observed arrival · 2026-09-23

thuattoan.dev: Algorithms in motion

thuattoan.dev Visit website

Editorial interest 77/100 Selection signal · not a rating of the site

A free Vietnamese-language algorithm course pairs step-by-step visualizers and synchronized sample code with Codeforces exercises and hints.

Landing page captured for the 2026-09-23 issue.

For: Vietnamese-speaking algorithm and competitive-programming learners
Worth noticing: The quicksort example tracks pivot, i, and j across 87 steps, marking comparison and swap states.

Field notes

The homepage reports 10 lessons and 73 Codeforces practice problems, grouped into two levels with familiar rating bands (800–1700 and 1000–2400). Lesson material is presented in Vietnamese, with sample code in C/C++, Python, and Java; exercises include three graduated hints, from a nudge toward the approach to something close to a solution. The page says learners can proceed without an account or installation.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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