<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Coin-System on Jasper</title><link>https://jasper-aa64.github.io/tags/coin-system/</link><description>Recent content in Coin-System on Jasper</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Tue, 28 Apr 2026 00:00:00 +0800</lastBuildDate><atom:link href="https://jasper-aa64.github.io/tags/coin-system/index.xml" rel="self" type="application/rss+xml"/><item><title>Number Theory #3.1: Sieve Problems — Coin System DP via Sieve</title><link>https://jasper-aa64.github.io/posts/number-theory-3-1-sieve-problems/</link><pubDate>Tue, 28 Apr 2026 00:00:00 +0800</pubDate><guid>https://jasper-aa64.github.io/posts/number-theory-3-1-sieve-problems/</guid><description>Greedy optimality for divisibility-chain coin systems, DP over the maximum denomination, and a sieve-style transition by adding one larger coin.</description></item></channel></rss>