vault backup: 2022-09-03 15:17:24

.obsidian/graph.json

@@ -7,6 +7,13 @@
   "showOrphans": false,
   "collapse-color-groups": false,
   "colorGroups": [
+    {
+      "query": "tag:#coding_problem",
+      "color": {
+        "a": 1,
+        "rgb": 6523645
+      }
+    },
     {
       "query": "tag:#CS_analysis",
       "color": {
@@ -15,15 +22,15 @@
       }
     },
     {
-      "query": "tag:#leetcode",
+      "query": "tag:#TODO",
       "color": {
         "a": 1,
-        "rgb": 1673572
+        "rgb": 14701138
       }
     }
   ],
   "collapse-display": false,
-  "showArrow": true,
+  "showArrow": false,
   "textFadeMultiplier": 0,
   "nodeSizeMultiplier": 1,
   "lineSizeMultiplier": 1,
@@ -32,6 +39,6 @@
   "repelStrength": 10,
   "linkStrength": 1,
   "linkDistance": 250,
-  "scale": 0.8153718570546561,
+  "scale": 0.7798887840302782,
-  "close": false
+  "close": true
 }

OJ notes/OJ-index.md

@@ -14,215 +14,28 @@ This is where I store notes about CS
 ___
 
 ## Lists
-#### Needs more understandings #CS_list_need_understanding
+#### Needs more understandings 
-```expander
+#CS_list_need_understanding
-tag:#CS_list_need_understanding 
+#### Needs practicing
-- [ ] [[$filename]]
+#CS_list_need_practicing
-```
- 
-- [ ] [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [ ] [[Leetcode Implement-Queue-Using-Stacks]]
-- [ ] [[Leetcode Reverse-Linked-List]]
-- [ ] [[Leetcode Rotate-Array]]
- 
-
-
-#### Needs practicing #CS_list_need_practicing
-```expander
-tag:#CS_list_need_practicing 
-- [ ] [[$filename]]
-```
- 
-- [ ] [[Leetcode Binary-Search]]
-- [ ] [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [ ] [[Leetcode Reverse-Linked-List]]
-- [ ] [[Leetcode Rotate-Array]]
-- [ ] [[Leetcode Validate-Binary-Search-Tree]]
- 
-
-
 ## Websites
 
 #### [leetcode.com](https://leetcode.com)
-
+#leetcode 
-```expander
-tag:#leetcode
-- [[$filename]]
-```
- 
-- [[Leetcode Best-Time-To-Buy-And-Sell-Stock]]
-- [[Leetcode Binary-Search]]
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Binary-Tree-Level-Order-Traversal]]
-- [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode First-Unique-Character-In-a-String]]
-- [[Leetcode Implement-Queue-Using-Stacks]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Linked-List-Cycle]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Maximum-Difference-Between-Increasing-Elements]]
-- [[Leetcode Maxinum-subarray]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Pascal's-Triangle]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Ransom-Note]]
-- [[Leetcode Remove-Duplicates-From-Sorted-List]]
-- [[Leetcode Remove-Linked-List-Elements]]
-- [[Leetcode Reshape-The-Matrix]]
-- [[Leetcode Reverse-Linked-List]]
-- [[Leetcode Rotate-Array]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Two-Sum]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
-- [[Leetcode Valid-Anagram]]
-- [[Leetcode Valid-Parentheses]]
-- [[Leetcode Valid-Sudoku]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
 
 #### [hackerearth.com](https://www.hackerearth.com/)
+#hackerearth
 
-```expander
-tag:#hackerearch
-- [[$filename]]
-```
- 
- 
-
-
-
-
-___
 ## Data Structure
+#DS
 #### Coding problems
-```expander
+#coding_problem 
-tag:#DS tag:#coding_problem -tag:#template_remove_me 
-- [[$filename]]
-```
- 
-- [[Leetcode Best-Time-To-Buy-And-Sell-Stock]]
-- [[Leetcode Binary-Search]]
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Binary-Tree-Level-Order-Traversal]]
-- [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode First-Unique-Character-In-a-String]]
-- [[Leetcode Implement-Queue-Using-Stacks]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Linked-List-Cycle]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Maxinum-subarray]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Pascal's-Triangle]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Ransom-Note]]
-- [[Leetcode Remove-Duplicates-From-Sorted-List]]
-- [[Leetcode Remove-Linked-List-Elements]]
-- [[Leetcode Reshape-The-Matrix]]
-- [[Leetcode Reverse-Linked-List]]
-- [[Leetcode Rotate-Array]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Two-Sum]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
-- [[Leetcode Valid-Anagram]]
-- [[Leetcode Valid-Parentheses]]
-- [[Leetcode Valid-Sudoku]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
- 
 #### Analysis
-```expander
+#CS_analysis 
-tag:#DS tag:#CS_analysis -tag:#template_remove_me 
-- [[$filename]]
-```
 
-- [[Breadth First Search]]
-- [[cpp_Range_based_for_loop]]
-- [[cpp_std_multiset]]
-- [[cpp_std_unordered_map]]
- 
-
- 
-___
 ## Algorithm
+#algorithm 
 #### Coding problems
-```expander
+#coding_problem 
-tag:#algorithm tag:#coding_problem -tag:#template_remove_me 
-- [[$filename]]
-```
- 
-- [[Leetcode Best-Time-To-Buy-And-Sell-Stock]]
-- [[Leetcode Binary-Search]]
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Binary-Tree-Level-Order-Traversal]]
-- [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode First-Unique-Character-In-a-String]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Linked-List-Cycle]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Maximum-Difference-Between-Increasing-Elements]]
-- [[Leetcode Maxinum-subarray]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Pascal's-Triangle]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Ransom-Note]]
-- [[Leetcode Reverse-Linked-List]]
-- [[Leetcode Rotate-Array]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Two-Sum]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
-- [[Leetcode Valid-Anagram]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
-
-
- 
 #### Analysis
-
+#CS_analysis 
-```expander
-tag:#algorithm tag:#CS_analysis -tag:#template_remove_me 
-- [[$filename]]
-```
- 
-- [[Binary Search Algorithm]]
-- [[Breadth First Search]]
-- [[cpp_std_sort]]
-- [[Floyd's Cycle Finding Algorithm]]
-- [[Kadane's Algorithm]]
-- [[Two pointers approach]]
- 
-
-
- 

OJ notes/pages/Binary Search Algorithm.md

@@ -10,18 +10,6 @@ ___
 ##### Difficulty:
 #CS_analysis #difficulty-easy
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#binary_search -tag:#template_remove_me 
-```
- 
-- [[Leetcode Binary-Search]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
- 
-
 ##### Links:
 - [g4g for manual implementation](https://www.geeksforgeeks.org/binary-search/)
 - [cppreference, find](https://en.cppreference.com/w/cpp/container/set/find)

OJ notes/pages/Bit-Manipulation count true trick.md

@@ -12,13 +12,6 @@
 > 
 
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#bit_manipulation -tag:#template_remove_me 
-```
- 
-
-___
-
 ### What is Bit-Manipulation count true trick?
 
 (n & (n - 1))

OJ notes/pages/Breadth First Search.md

@@ -12,17 +12,6 @@
 > 
 
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#BFS -tag:#template_remove_me 
-```
- 
-- [[Leetcode Binary-Tree-Level-Order-Traversal]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
- 
-
 ##### Links:
 - [cppreference]()
 ___

OJ notes/pages/Floyd's Cycle Finding Algorithm.md

@@ -10,13 +10,6 @@ ___
 ##### Difficulty:
 #CS_analysis #difficulty-easy
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#Floyd_s_cycle_finding_algorithm  -tag:#template_remove_me 
-```
- 
-- [[Leetcode Linked-List-Cycle]]
- 
-
 ##### Links:
 - [g4g](https://www.geeksforgeeks.org/floyds-cycle-finding-algorithm/)
 ___

OJ notes/pages/Kadane's Algorithm.md

@@ -12,16 +12,6 @@
 ##### Time complexity:
 O(n)
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#Kadane_s_algorithm  -tag:#template_remove_me 
-```
- 
-- [[Leetcode Best-Time-To-Buy-And-Sell-Stock]]
-- [[Leetcode Maximum-Difference-Between-Increasing-Elements]]
-- [[Leetcode Maxinum-subarray]]
- 
-
-
 ##### Resources:
 - [Explainer article](https://medium.com/@rsinghal757/kadanes-algorithm-dynamic-programming-how-and-why-does-it-work-3fd8849ed73d)
 

OJ notes/pages/Leetcode 01-Matrix.md

@@ -14,13 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#BFS
-```
-
-
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/01-matrix/)
 ___

OJ notes/pages/Leetcode Average-Salary-Excluding-the-Minimum-and-Maximum-Salary.md

@@ -10,12 +10,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#math
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/average-salary-excluding-the-minimum-and-maximum-salary/)
 ___

OJ notes/pages/Leetcode Best-Time-To-Buy-And-Sell-Stock.md

@@ -10,16 +10,6 @@
 ##### Difficulty:
 #leetcode  #coding_problem #difficulty-easy
 ##### Related topics:
-```expander
-tag:#Kadane_s_algorithm 
-```
- 
-- [[Kadane's Algorithm]]
-- [[Leetcode Maximum-Difference-Between-Increasing-Elements]]
-- [[Leetcode Maxinum-subarray]]
- 
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/best-time-to-buy-and-sell-stock/)
 - [Kadane's Algo solution](https://leetcode.com/problems/best-time-to-buy-and-sell-stock/solution/554875)

OJ notes/pages/Leetcode Binary-Search.md

@@ -14,18 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#binary_search
-```
- 
-- [[Binary Search Algorithm]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/binary-search/)
 ___

OJ notes/pages/Leetcode Binary-Tree-Inorder-Traversal.md

@@ -14,22 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#DFS
-```
- 
-- [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/binary-tree-inorder-traversal/)
 ___

OJ notes/pages/Leetcode Binary-Tree-Level-Order-Traversal.md

@@ -14,17 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#BFS
-```
- 
-- [[Breadth First Search]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/binary-tree-level-order-traversal/)
 ___

OJ notes/pages/Leetcode Binary-Tree-Postorder-Traversal.md

@@ -14,22 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#DFS
-```
- 
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/binary-tree-postorder-traversal/)
 ___

OJ notes/pages/Leetcode Binary-Tree-Preorder-Traversal.md

@@ -14,22 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#DFS
-```
- 
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/binary-tree-preorder-traversal/)
 ___

OJ notes/pages/Leetcode Check-If-It-Is-a-Straight-Line.md

@@ -12,11 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#math
-```
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/check-if-it-is-a-straight-line/)
 ___

OJ notes/pages/Leetcode Climbing-Chairs.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#dynamic_programming
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/climbing-stairs/submissions/)
 ___

OJ notes/pages/Leetcode Combinations.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#backtrack
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/combinations/)
 - [Explanation](https://leetcode.com/problems/combinations/discuss/844096/Backtracking-cheatsheet-%2B-simple-solution)

OJ notes/pages/Leetcode Count-Odd-Numbers-in-an-Interval-Range.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#math
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/count-odd-numbers-in-an-interval-range/)
 ___

OJ notes/pages/Leetcode First-Bad-Version.md

@@ -14,18 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#binary_search
-```
- 
-- [[Binary Search Algorithm]]
-- [[Leetcode Binary-Search]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/first-bad-version/)
 ___

OJ notes/pages/Leetcode First-Unique-Character-In-a-String.md

@@ -10,16 +10,6 @@
 ##### Difficulty:
 #leetcode  #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-tag:#string OR tag:#hash_table
-```
- 
-- [[cpp_std_unordered_map]]
-- [[Leetcode Ransom-Note]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
-- [[Leetcode Valid-Anagram]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/first-unique-character-in-a-string/)
 ___

OJ notes/pages/Leetcode Flood-Fill.md

@@ -14,11 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#BFS OR tag:#DFS
-```
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/flood-fill/)
 ___

OJ notes/pages/Leetcode Happy-Number.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#Floyd_s_cycle_finding_algorithm 
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/happy-number/)
 ___

OJ notes/pages/Leetcode House-Robber.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#dynamic_programming
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/house-robber/)
 - [Tutorial and explanation on DP](https://leetcode.com/problems/house-robber/discuss/156523/From-good-to-great.-How-to-approach-most-of-DP-problems.)

OJ notes/pages/Leetcode Implement-Queue-Using-Stacks.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#stack tag:#queue 
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/implement-queue-using-stacks/submissions/)
 ___

OJ notes/pages/Leetcode Insert-Into-a-Binary-Search-Tree.md

@@ -14,22 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#DFS
-```
- 
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/insert-into-a-binary-search-tree/)
 ___

OJ notes/pages/Leetcode Intersection-of-Two-Arrays-II.md

@@ -11,20 +11,6 @@
 ##### Difficulty:
 #leetcode #coding_problem #difficulty-easy
 ##### Related topics:
-```expander
-tag:#unordered_map OR tag:#two_pointers OR tag:#sort
-```
- 
-- [[cpp_std_sort]]
-- [[cpp_std_unordered_map]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Leetcode Two-Sum]]
-- [[Two pointers approach]]
- 
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/intersection-of-two-arrays-ii/)
 - [Solution 2(two pointers method)](https://leetcode.com/problems/intersection-of-two-arrays-ii/discuss/846181/C%2B%2B-Solutions-or-1-%3A-Map-or-2-%3A-Two-Pointer-with-sort)

OJ notes/pages/Leetcode Invert-Binary-Tree.md

@@ -14,15 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#recursion tag:#DFS
-```
- 
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Symmetric-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/invert-binary-tree/)
 ___

OJ notes/pages/Leetcode Largest-Perimeter-Triangle.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#math
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/largest-perimeter-triangle/)
 ___

OJ notes/pages/Leetcode Letter-Case-Combination.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#backtrack
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/letter-case-permutation/)
 ___

OJ notes/pages/Leetcode Linked-List-Cycle.md

@@ -10,13 +10,6 @@
 ##### Difficulty:
 #leetcode  #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-tag:#Floyd_s_cycle_finding_algorithm 
-```
- 
-- [[Floyd's Cycle Finding Algorithm]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/linked-list-cycle/)
 ___

OJ notes/pages/Leetcode Longest-Substring-Without-Repeating-Characters.md

@@ -14,11 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#Kadane_s_algorithm  OR tag:#sliding_window 
-```
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/longest-substring-without-repeating-characters/)
 ___

OJ notes/pages/Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree.md

@@ -14,14 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#binary_search_tree
-```
- 
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/)
 ___

OJ notes/pages/Leetcode Max-Area-of-Island.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#BFS OF tag:#DFS
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/max-area-of-island/)
 ___

OJ notes/pages/Leetcode Maximum-Depth-Of-Binary-Tree.md

@@ -14,17 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#BFS
-```
- 
-- [[Breadth First Search]]
-- [[Leetcode Binary-Tree-Level-Order-Traversal]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/maximum-depth-of-binary-tree/)
 ___

OJ notes/pages/Leetcode Maximum-Difference-Between-Increasing-Elements.md

@@ -12,15 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#Kadane_s_algorithm 
-```
- 
-- [[Kadane's Algorithm]]
-- [[Leetcode Best-Time-To-Buy-And-Sell-Stock]]
-- [[Leetcode Maxinum-subarray]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/maximum-difference-between-increasing-elements/)
 ___

OJ notes/pages/Leetcode Maxinum-subarray.md

@@ -13,16 +13,6 @@
 - [Link to problem](https://leetcode.com/problems/maximum-subarray/)
 - [Analysis](https://medium.com/@rsinghal757/kadanes-algorithm-dynamic-programming-how-and-why-does-it-work-3fd8849ed73d)
 ##### Related topics:
-```expander
-tag:#Kadane_s_algorithm 
-```
- 
-- [[Kadane's Algorithm]]
-- [[Leetcode Best-Time-To-Buy-And-Sell-Stock]]
-- [[Leetcode Maximum-Difference-Between-Increasing-Elements]]
- 
-
-
 ### Problem
 Given an integer array `nums`, find the contiguous subarray (containing at least one number) which has the largest sum and return _its sum_.
 

OJ notes/pages/Leetcode Merge-Sorted-Array.md

@@ -10,23 +10,6 @@
 ##### Difficulty:
 #leetcode #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-tag:#set OR tag:#multiset OR tag:#merge_sort OR tag:#vector OR tag:#two_pointers
-```
- 
-- [[Binary Search Algorithm]]
-- [[cpp_Range_based_for_loop]]
-- [[cpp_std_multiset]]
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Reshape-The-Matrix]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Leetcode Valid-Sudoku]]
-- [[Two pointers approach]]
- 
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/merge-sorted-array/)
 - [multiset cpp reference](https://leetcode.com/problems/merge-sorted-array/)

OJ notes/pages/Leetcode Merge-Two-Binary-Trees.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#DFS OR tag:#BFS
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/merge-two-binary-trees/)
 ___

OJ notes/pages/Leetcode Merge-Two-Sorted-Lists.md

@@ -10,16 +10,6 @@
 ##### Difficulty:
 #leetcode  #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-tag:#two_pointers
-```
- 
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Two pointers approach]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/merge-two-sorted-lists/)
 ___

OJ notes/pages/Leetcode Middle-of-the-Linked-List.md

@@ -14,21 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#two_pointers
-```
- 
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Move-Zeroes]]
-- [[Leetcode Remove-Nth-Node-From-End-of-List]]
-- [[Leetcode Reverse-Words-In-a-String]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Leetcode Two-Sum-II-Input-Array-Is-Sorted]]
-- [[Two pointers approach]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/middle-of-the-linked-list/)
 ___

OJ notes/pages/Leetcode Move-Zeroes.md

@@ -14,18 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#array_in_place_operation OR tag:#two_pointers
-```
- 
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Rotate-Array]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Two pointers approach]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/move-zeroes/)
 ___

OJ notes/pages/Leetcode Next-Greater-Element-I.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#stack
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/next-greater-element-i/)
 ___

OJ notes/pages/Leetcode Number-of-1-Bits.md

@@ -14,11 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#bit_manipulation
-```
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/number-of-1-bits/)
 ___

OJ notes/pages/Leetcode Pascal's-Triangle.md

@@ -10,31 +10,6 @@
 ##### Difficulty:
 #leetcode #coding_problem #difficulty-easy
 ##### Related topics:
-```expander
-tag:#recursion OR tag:#iteration OR tag:#array -tag:#Kadane_s_algorithm 
-```
- 
-- [[Binary Search Algorithm]]
-- [[cpp_Range_based_for_loop]]
-- [[Leetcode Binary-Search]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode First-Unique-Character-In-a-String]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Ransom-Note]]
-- [[Leetcode Reshape-The-Matrix]]
-- [[Leetcode Reverse-Linked-List]]
-- [[Leetcode Rotate-Array]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Two-Sum]]
-- [[Leetcode Valid-Anagram]]
-- [[Two pointers approach]]
- 
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/pascals-triangle/)
 - [Additional resources]()

OJ notes/pages/Leetcode Path-Sum.md

@@ -14,22 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#DFS
-```
- 
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/path-sum/)
 ___

OJ notes/pages/Leetcode Permutation-In-String.md

@@ -14,11 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#sliding_window
-```
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/permutation-in-string/)
 ___

OJ notes/pages/Leetcode Permutations.md

@@ -12,12 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#backtrack
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/permutations/)
 ___

OJ notes/pages/Leetcode Populating-Next-Right-Pointers-In-Each-Node.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#BFS
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/populating-next-right-pointers-in-each-node/)
 ___

OJ notes/pages/Leetcode Power-of-Two.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#bitset OR tag:#bit_manipulation
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/power-of-two/)
 ___

OJ notes/pages/Leetcode Ransom-Note.md

@@ -10,16 +10,6 @@
 ##### Difficulty:
 #leetcode #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-tag:#hash_table
-```
- 
-- [[cpp_std_unordered_map]]
-- [[Leetcode First-Unique-Character-In-a-String]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
-- [[Leetcode Valid-Anagram]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/ransom-note/)
 ___

OJ notes/pages/Leetcode Remove-Duplicates-From-Sorted-List.md

@@ -13,18 +13,6 @@
 > 1st. revision: 2022-07-02
 
 ##### Related topics:
-```expander
-tag:#linked_list
-```
- 
-- [[Floyd's Cycle Finding Algorithm]]
-- [[Leetcode Linked-List-Cycle]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Remove-Linked-List-Elements]]
-- [[Leetcode Reverse-Linked-List]]
-- [[Two pointers approach]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/remove-duplicates-from-sorted-list/)
 ___

OJ notes/pages/Leetcode Remove-Linked-List-Elements.md

@@ -8,18 +8,6 @@
 ##### Difficulty:
 #leetcode #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-tag:#linked_list
-```
- 
-- [[Floyd's Cycle Finding Algorithm]]
-- [[Leetcode Linked-List-Cycle]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Remove-Duplicates-From-Sorted-List]]
-- [[Leetcode Reverse-Linked-List]]
-- [[Two pointers approach]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/remove-linked-list-elements/)
 - [Additional Solutions](https://leetcode.com/problems/remove-linked-list-elements/discuss/722528/C++-2-solutions:-With-single-pointer-+-With-double-pointers-(Easy-to-understand)/1390186)

OJ notes/pages/Leetcode Remove-Nth-Node-From-End-of-List.md

@@ -14,21 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#two_pointers
-```
- 
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Middle-of-the-Linked-List]]
-- [[Leetcode Move-Zeroes]]
-- [[Leetcode Reverse-Words-In-a-String]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Leetcode Two-Sum-II-Input-Array-Is-Sorted]]
-- [[Two pointers approach]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/remove-nth-node-from-end-of-list/)
 - [Explanation](https://leetcode.com/problems/remove-nth-node-from-end-of-list/discuss/1164542/JS-Python-Java-C%2B%2B-or-Easy-Two-Pointer-Solution-w-Explanation)

OJ notes/pages/Leetcode Reshape-The-Matrix.md

@@ -8,29 +8,6 @@
 ##### Difficulty:
 #leetcode #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-(tag:#array OR tag:#vector) -tag:#Kadane_s_algorithm 
-```
- 
-- [[Binary Search Algorithm]]
-- [[cpp_Range_based_for_loop]]
-- [[Leetcode Binary-Search]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode First-Unique-Character-In-a-String]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Pascal's-Triangle]]
-- [[Leetcode Ransom-Note]]
-- [[Leetcode Rotate-Array]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Leetcode Two-Sum]]
-- [[Leetcode Valid-Anagram]]
-- [[Leetcode Valid-Sudoku]]
-- [[Two pointers approach]]
- 
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/reshape-the-matrix/)
 ___

OJ notes/pages/Leetcode Reverse-Bits.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#bitset
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/reverse-bits/)
 - [Solution and detailed explanation](https://leetcode.com/problems/reverse-bits/discuss/1232842/JAVA-C%2B%2B-%3A-0ms-or-O(1)-Time-Complexity-or-in-place-or-Detailed-Explanation)

OJ notes/pages/Leetcode Reverse-Linked-List.md

@@ -14,20 +14,6 @@
 ##### Revisions:
 2022-07-02
 ##### Related topics:
-```expander
-tag:#linked_list
-```
- 
-- [[Floyd's Cycle Finding Algorithm]]
-- [[Leetcode Linked-List-Cycle]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Remove-Duplicates-From-Sorted-List]]
-- [[Leetcode Remove-Linked-List-Elements]]
-- [[Two pointers approach]]
- 
-
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/reverse-linked-list/)
 ___

OJ notes/pages/Leetcode Reverse-String.md

@@ -14,18 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#recursion
-```
- 
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Pascal's-Triangle]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Reverse-Linked-List]]
-- [[Leetcode Symmetric-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/reverse-string/)
 ___

OJ notes/pages/Leetcode Reverse-Words-In-a-String.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#two_pointers
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/reverse-words-in-a-string-iii/)
 ___

OJ notes/pages/Leetcode Rotate-Array.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#array_in_place_operation OR #reverse_array 
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/rotate-array/)
 ___

OJ notes/pages/Leetcode Rotting-Oranges.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#<INSERT_TAG_HERE>
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/rotting-oranges/)
 ___

OJ notes/pages/Leetcode Search-In-a-Binary-Tree.md

@@ -14,25 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#DFS OR tag:#BFS
-```
- 
-- [[Breadth First Search]]
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Binary-Tree-Level-Order-Traversal]]
-- [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Symmetric-Tree]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/search-in-a-binary-search-tree/submissions/)
 ___

OJ notes/pages/Leetcode Search-Insert-Position.md

@@ -14,18 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#binary_search
-```
- 
-- [[Binary Search Algorithm]]
-- [[Leetcode Binary-Search]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/binary-search/)
 ___

OJ notes/pages/Leetcode Search-a-2D-Matrix.md

@@ -10,22 +10,6 @@
 ##### Difficulty:
 #leetcode  #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-tag:#vector OR tag:#vector_2d OR tag:#binary_search
-```
- 
-- [[Binary Search Algorithm]]
-- [[cpp_Range_based_for_loop]]
-- [[Leetcode Binary-Search]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Reshape-The-Matrix]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
-- [[Leetcode Valid-Sudoku]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/search-a-2d-matrix/submissions/)
 ___

OJ notes/pages/Leetcode Single-Number.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#bit_manipulation
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/single-number/)
 - [Learn about XOR](https://en.wikipedia.org/wiki/Exclusive_or#Computer_science)

OJ notes/pages/Leetcode Squares-of-a-Sorted-Array.md

@@ -14,16 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#two_pointers
-```
- 
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Two pointers approach]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/squares-of-a-sorted-array/)
 ___

OJ notes/pages/Leetcode Subsets.md

@@ -14,12 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#backtrack
-```
- 
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/subsets/)
 ___

OJ notes/pages/Leetcode Symmetric-Tree.md

@@ -14,25 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#DFS OR tag:#BFS
-```
- 
-- [[Breadth First Search]]
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Binary-Tree-Level-Order-Traversal]]
-- [[Leetcode Binary-Tree-Postorder-Traversal]]
-- [[Leetcode Binary-Tree-Preorder-Traversal]]
-- [[Leetcode Insert-Into-a-Binary-Search-Tree]]
-- [[Leetcode Invert-Binary-Tree]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Path-Sum]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
-- [[Leetcode Validate-Binary-Search-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/symmetric-tree/)
 ___

OJ notes/pages/Leetcode Triangle.md

@@ -12,11 +12,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#dynamic_programming
-```
-
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/triangle/)
 ___

OJ notes/pages/Leetcode Two-Sum-II-Input-Array-Is-Sorted.md

@@ -14,18 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#two_pointers
-```
- 
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Move-Zeroes]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
-- [[Two pointers approach]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/)
 ___

OJ notes/pages/Leetcode Two-Sum-IV-Input-Is-a-BST.md

@@ -14,23 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#BFS OR tag:#binary_search
-```
- 
-- [[Binary Search Algorithm]]
-- [[Breadth First Search]]
-- [[Leetcode Binary-Search]]
-- [[Leetcode Binary-Tree-Level-Order-Traversal]]
-- [[Leetcode First-Bad-Version]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Maximum-Depth-Of-Binary-Tree]]
-- [[Leetcode Search-a-2D-Matrix]]
-- [[Leetcode Search-In-a-Binary-Tree]]
-- [[Leetcode Search-Insert-Position]]
-- [[Leetcode Symmetric-Tree]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/two-sum-iv-input-is-a-bst/)
 - [Three method to solve this](https://leetcode.com/problems/two-sum-iv-input-is-a-bst/discuss/106059/JavaC%2B%2B-Three-simple-methods-choose-one-you-like)

OJ notes/pages/Leetcode Two-Sum.md

@@ -10,14 +10,6 @@
 ##### Difficulty:
 #coding_problem #leetcode #difficulty-easy
 ##### Related topics:
-```expander
-tag:#map OR tag:#unordered_map 
-```
- 
-- [[cpp_std_unordered_map]]
-- [[Leetcode Intersection-of-Two-Arrays-II]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/two-sum)
 - [O(n) Solution](https://leetcode.com/problems/two-sum/discuss/13/Accepted-C++-O(n)-Solution/263)

OJ notes/pages/Leetcode Valid-Anagram.md

@@ -10,14 +10,6 @@
 ##### Difficulty:
 #leetcode  #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-tag:#array  tag:#hash_table
-```
- 
-- [[Leetcode First-Unique-Character-In-a-String]]
-- [[Leetcode Ransom-Note]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/valid-anagram/)
 ___

OJ notes/pages/Leetcode Valid-Parentheses.md

@@ -12,13 +12,6 @@
 > 1st revision: 2022-07-03 optimize code
 
 ##### Related topics:
-```expander
-tag:#stack
-```
- 
-- [[Leetcode Implement-Queue-Using-Stacks]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/valid-parentheses/)
 ___

OJ notes/pages/Leetcode Valid-Sudoku.md

@@ -8,17 +8,6 @@
 ##### Difficulty:
 #leetcode  #coding_problem #difficulty-easy 
 ##### Related topics:
-```expander
-tag:#vector
-```
- 
-- [[Binary Search Algorithm]]
-- [[cpp_Range_based_for_loop]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Reshape-The-Matrix]]
-- [[Leetcode Search-a-2D-Matrix]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/valid-sudoku/)
 - [Simple solution](https://leetcode.com/problems/valid-sudoku/discuss/15464/My-short-solution-by-C%2B%2B.-O(n2))

OJ notes/pages/Leetcode Validate-Binary-Search-Tree.md

@@ -14,15 +14,6 @@
 > N/A
 
 ##### Related topics:
-```expander
-tag:#DFS_inorder OR tag:#binary_search_tree
-```
- 
-- [[Leetcode Binary-Tree-Inorder-Traversal]]
-- [[Leetcode Lowest-Common-Ancestor-Of-a-Binary-Search-Tree]]
-- [[Leetcode Two-Sum-IV-Input-Is-a-BST]]
- 
-
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/validate-binary-search-tree/)
 ___

OJ notes/pages/Two pointers approach.md

@@ -10,16 +10,6 @@ ___
 ##### Difficulty:
 #CS_analysis #difficulty-
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#two_pointers -tag:#template_remove_me 
-```
- 
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Merge-Sorted-Array]]
-- [[Leetcode Merge-Two-Sorted-Lists]]
-- [[Leetcode Squares-of-a-Sorted-Array]]
- 
-
 ##### Links:
 - [leetcode](https://leetcode.com/explore/learn/card/fun-with-arrays/511/in-place-operations/)
 ___

OJ notes/pages/cpp_Range_based_for_loop.md

@@ -8,13 +8,6 @@ ___
 ##### Difficulty:
 #CS_analysis #difficulty-easy
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#array tag:#vector tag:#multiset -tag:#template_remove_me 
-```
- 
- 
-
-
 ##### Links:
 - [cppreference](https://en.cppreference.com/w/cpp/language/range-for)
 ___

OJ notes/pages/cpp_std_multiset.md

@@ -8,14 +8,6 @@ ___
 ##### Difficulty:
 #CS_analysis #difficulty-easy
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#multiset -tag:#template_remove_me 
-```
- 
-- [[Leetcode Merge-Sorted-Array]]
- 
-
-
 ##### Links:
 - [cppreference](https://en.cppreference.com/w/cpp/container/multiset)
 ___

OJ notes/pages/cpp_std_sort.md

@@ -8,14 +8,6 @@ ___
 ##### Difficulty:
 #CS_analysis #difficulty-easy
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#sort -tag:#template_remove_me 
-```
- 
-- [[Leetcode Intersection-of-Two-Arrays-II]]
- 
-
-
 ##### Links:
 - [cpp reference](https://en.cppreference.com/w/cpp/algorithm/sort)
 ___

OJ notes/pages/cpp_std_unordered_map.md

@@ -8,15 +8,6 @@ ___
 ##### Difficulty:
 #CS_analysis #difficulty-easy
 ##### Related problems:
-```expander
-tag:#coding_problem tag:#unordered_map -tag:#template_remove_me 
-```
- 
-- [[Leetcode Intersection-of-Two-Arrays-II]]
-- [[Leetcode Two-Sum]]
- 
-
-
 ##### Links:
 - [Unordered map explainer](https://www.geeksforgeeks.org/unordered_map-in-cpp-stl/)
 - [Unordered map vs ordered map](https://www.geeksforgeeks.org/unordered_map-in-cpp-stl/)