<![CDATA[Stories by Archit Agarwal on Medium]]> https://medium.com/@architagr?source=rss-936daaecae4b------2 https://cdn-images-1.medium.com/fit/c/150/150/1*F9zUDaRbDQagxoU_wLtZ_w.png Stories by Archit Agarwal on Medium https://medium.com/@architagr?source=rss-936daaecae4b------2 Medium Thu, 05 Nov 2026 00:39:44 GMT <![CDATA[A config 5x longer took 28.7x longer to validate]]>

It worked in dev · Episode 21 · technique: count the links, then union-find

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]]> https://levelup.gitconnected.com/graph-valid-tree-in-go-count-the-links-then-union-find-4c7d2ef237c5?source=rss-936daaecae4b------2 https://medium.com/p/4c7d2ef237c5 Mon, 02 Nov 2026 05:15:09 GMT 2026-11-02T05:15:09.429Z <![CDATA[999 more stores made the delivery map 213x slower]]>

It worked in dev · Episode 20 · technique: two sweeps instead of a queue

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]]> https://levelup.gitconnected.com/distance-to-nearest-store-in-go-two-sweeps-not-a-queue-fb2948e1e15d?source=rss-936daaecae4b------2 https://medium.com/p/fb2948e1e15d Mon, 02 Nov 2026 05:14:39 GMT 2026-11-02T05:14:39.159Z <![CDATA[499 new links made the network count 608x slower]]>

It worked in dev · Episode 18 · technique: connected components, one sweep

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]]> https://levelup.gitconnected.com/counting-connected-components-in-go-one-sweep-not-n-bfs-9bfd8cf7efa0?source=rss-936daaecae4b------2 https://medium.com/p/9bfd8cf7efa0 Wed, 28 Oct 2026 16:35:34 GMT 2026-10-28T16:35:34.717Z <![CDATA[Invalidation got faster; computing it got 540x slower]]>

It worked in dev · Episode 19 · technique: multi-source BFS

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]]> https://levelup.gitconnected.com/multi-source-bfs-in-go-seed-the-queue-do-not-loop-searches-44b86b6b9c8f?source=rss-936daaecae4b------2 https://medium.com/p/44b86b6b9c8f Wed, 28 Oct 2026 16:35:23 GMT 2026-10-28T16:35:23.202Z <![CDATA[Your category report changes its answer on refresh]]>

It worked in dev · Episode 17 · technique: depth as an index, read in order

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]]> https://levelup.gitconnected.com/max-level-sum-in-go-why-a-map-keyed-version-is-random-aad84b7bd501?source=rss-936daaecae4b------2 https://medium.com/p/aad84b7bd501 Mon, 26 Oct 2026 13:39:59 GMT 2026-10-26T13:39:59.315Z <![CDATA[The collapsed thread built 55,987 previews to show 7]]>

It worked in dev · Episode 16 · technique: first arrival wins

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]]> https://levelup.gitconnected.com/one-preview-per-nesting-level-in-go-tree-right-side-view-d2618305401f?source=rss-936daaecae4b------2 https://medium.com/p/d2618305401f Wed, 21 Oct 2026 21:25:04 GMT 2026-10-21T21:25:04.113Z <![CDATA[Your org chart read 55,987 rows to draw the first 43]]>

It worked in dev · Episode 15 · technique: level order with a queue

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]]> https://levelup.gitconnected.com/level-order-traversal-in-go-stop-at-depth-n-with-a-queue-9c73636cfa2e?source=rss-936daaecae4b------2 https://medium.com/p/9c73636cfa2e Mon, 19 Oct 2026 15:48:17 GMT 2026-10-19T15:48:17.218Z <![CDATA[Your crash report held 186 MB of log to send 200 lines]]>

It worked in dev · Episode 14 · technique: a fixed gap between two cursors

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]]> https://levelup.gitconnected.com/last-n-lines-of-a-log-in-go-without-holding-the-whole-file-b0111dcb28c0?source=rss-936daaecae4b------2 https://medium.com/p/b0111dcb28c0 Fri, 16 Oct 2026 15:27:27 GMT 2026-10-16T15:27:27.579Z <![CDATA[The loop check allocated 4.7 MB to return a boolean]]>

It worked in dev · Episode 12 · technique: two cursors at different speeds

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]]> https://levelup.gitconnected.com/cycle-detection-in-go-fast-and-slow-pointers-vs-a-map-5d12b169ac25?source=rss-936daaecae4b------2 https://medium.com/p/5d12b169ac25 Mon, 12 Oct 2026 14:42:19 GMT 2026-10-12T14:42:19.321Z <![CDATA[A deep reply chain made the delete plan 790x slower]]>

It worked in dev · Episode 11 · technique: peeling leaves, one layer at a time

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]]> https://levelup.gitconnected.com/safe-cascade-delete-order-in-go-children-before-parents-32adf3bfa6e1?source=rss-936daaecae4b------2 https://medium.com/p/32adf3bfa6e1 Fri, 09 Oct 2026 14:37:03 GMT 2026-10-10T08:10:09.161Z