Update: daily

problems/best-time-to-buy-and-sell-stock-ii/README.md

@@ -44,8 +44,8 @@
 <strong>Explanation:</strong> In this case, no transaction is done, i.e. max profit = 0.</pre>
 
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   [[Greedy](https://github.com/openset/leetcode/tree/master/tag/greedy/README.md)]
+  [[Array](https://github.com/openset/leetcode/tree/master/tag/array/README.md)]
 
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problems/binary-tree-inorder-traversal/README.md

@@ -28,9 +28,9 @@
 <p><strong>Follow up:</strong> Recursive solution is trivial, could you do it iteratively?</p>
 
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+  [[Hash Table](https://github.com/openset/leetcode/tree/master/tag/hash-table/README.md)]
 
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problems/construct-binary-tree-from-inorder-and-postorder-traversal/README.md

@@ -33,9 +33,9 @@ postorder = [9,15,7,20,3]</pre>
 </pre>
 
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+  [[Array](https://github.com/openset/leetcode/tree/master/tag/array/README.md)]
 
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problems/construct-binary-tree-from-preorder-and-inorder-traversal/README.md

@@ -32,9 +32,9 @@ inorder = [9,3,15,20,7]</pre>
    15   7</pre>
 
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-  [[Array](https://github.com/openset/leetcode/tree/master/tag/array/README.md)]
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   [[Depth-first Search](https://github.com/openset/leetcode/tree/master/tag/depth-first-search/README.md)]
+  [[Array](https://github.com/openset/leetcode/tree/master/tag/array/README.md)]
 
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problems/convert-sorted-list-to-binary-search-tree/README.md

@@ -30,8 +30,8 @@ One possible answer is: [0,-3,9,-10,null,5], which represents the following heig
 </pre>
 
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+  [[Linked List](https://github.com/openset/leetcode/tree/master/tag/linked-list/README.md)]
 
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problems/largest-rectangle-in-histogram/README.md

@@ -33,8 +33,8 @@
 </pre>
 
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problems/maximal-rectangle/README.md

@@ -27,10 +27,10 @@
 </pre>
 
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-  [[Stack](https://github.com/openset/leetcode/tree/master/tag/stack/README.md)]
 
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problems/unique-binary-search-trees-ii/README.md

@@ -36,8 +36,8 @@ The above output corresponds to the 5 unique BST's shown below:
 </pre>
 
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+  [[Dynamic Programming](https://github.com/openset/leetcode/tree/master/tag/dynamic-programming/README.md)]
 
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problems/unique-binary-search-trees/README.md

@@ -29,8 +29,8 @@
 </pre>
 
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