Merge Sort vs Bubble Sort — Why 800 Comparisons Beats 147 Every Time
The article compares Merge Sort and Bubble Sort, highlighting the significant difference in their efficiency. Merge Sort requires only 147 comparisons for sorting 30 elements, while Bubble Sort needs over 800 comparisons. This difference is attributed to the algorithms' fundamental approaches to sorting data.
- ▪Bubble Sort compares adjacent elements and has a worst-case time complexity of O(n²).
- ▪Merge Sort divides the array into single elements and merges them back, achieving a guaranteed time complexity of O(n log n).
- ▪The article includes a code example of the Merge Sort algorithm implemented in JavaScript.
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| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/amargul/merge-sort-vs-bubble-sort-why-800-comparisons-beats-147-every-time-1de0 |
| Publication time | Sat, 16 May 2026 19:00:50 +0000 |
| Retrieval time | 2026-05-16T19:10:19.020Z |
| Last seen | 2026-05-16T19:10:19.020Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | FSxIFW3QP56o |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3922263) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Amar Gul Posted on May 16 Merge Sort vs Bubble Sort — Why 800 Comparisons Beats 147 Every Time #react #javascript #algorithms #tutorial Most developers know Merge Sort is faster than Bubble Sort. But watching it happen makes the difference visceral. The Numbers Bubble Sort: 800+ comparisons Merge Sort: 147 comparisons Same 30 elements. Same result. Why Such a Difference? Bubble Sort compares adjacent elements and moves them one step at a time — O(n²) in worst case.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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