diff --git a/.obsidian/appearance.json b/.obsidian/appearance.json
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--- a/.obsidian/appearance.json
+++ b/.obsidian/appearance.json
@@ -1,5 +1,5 @@
 {
-  "theme": "obsidian",
+  "theme": "moonstone",
   "translucency": true,
   "cssTheme": "Prism",
   "interfaceFontFamily": "IBM Plex Sans",
diff --git a/OJ notes/pages/Leetcode Partition-Labels.md b/OJ notes/pages/Leetcode Partition-Labels.md
new file mode 100644
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@@ -0,0 +1,62 @@
+# Leetcode Partition-Labels
+
+2022-09-06 13:46
+
+> ##### Algorithms:
+>
+> #algorithm #greedy 
+>
+> ##### Data structures:
+>
+> #DS #hash_table 
+>
+> ##### Difficulty:
+>
+> #coding_problem #difficulty-medium 
+>
+> ##### Additional tags:
+>
+> #leetcode 
+>
+> ##### Revisions:
+>
+> N/A
+
+##### Links:
+
+- [Link to problem](https://leetcode.com/problems/partition-labels/)
+
+---
+
+### Problem
+
+You are given a string `s`. We want to partition the string into as many parts as possible so that each letter appears in at most one part.
+
+Note that the partition is done so that after concatenating all the parts in order, the resultant string should be `s`.
+
+Return _a list of integers representing the size of these parts_.
+
+#### Examples
+
+**Example 1:**
+
+**Input:** s = "ababcbacadefegdehijhklij"
+**Output:** [9,7,8]
+**Explanation:**
+The partition is "ababcbaca", "defegde", "hijhklij".
+This is a partition so that each letter appears in at most one part.
+A partition like "ababcbacadefegde", "hijhklij" is incorrect, because it splits s into less parts.
+
+**Example 2:**
+
+**Input:** s = "eccbbbbdec"
+**Output:** [10]
+
+#### Constraints
+
+### Thoughts
+
+> [!summary]
+> This is a #template_remove_me
+
+### Solution