https://shio-chan-dev.github.io/jeanblog/tags/leetcode-236/Recent content in LeetCode 236 on Jeanphilo BlogHugo -- 0.161.1en-usSun, 19 Apr 2026 15:51:55 +0800https://shio-chan-dev.github.io/jeanblog/alg/leetcode/hot100/binary-tree/236-lowest-common-ancestor-of-a-binary-tree/Sun, 19 Apr 2026 15:51:55 +0800https://shio-chan-dev.github.io/jeanblog/alg/leetcode/hot100/binary-tree/236-lowest-common-ancestor-of-a-binary-tree/A practical guide to LeetCode 236 covering the return-value meaning in postorder recursion, when the current node becomes the answer, and why a node can be its own ancestor.