Design on Jeanphilo Bloghttps://shio-chan-dev.github.io/jeanblog/tags/design/Recent content in Design on Jeanphilo BlogHugo -- 0.165.0en-usFri, 21 Aug 2026 00:00:00 +0000LeetCode 155: Min Stack, Keeping the Minimum in Sync With Stack Statehttps://shio-chan-dev.github.io/jeanblog/alg/leetcode/hot100/155-min-stack/Fri, 21 Aug 2026 00:00:00 +0000https://shio-chan-dev.github.io/jeanblog/alg/leetcode/hot100/155-min-stack/Start from restoring the previous minimum after pop, build a correct scan baseline, and derive an O(1) Min Stack with synchronized prefix minima.