|
101 | 101 | ## Tree Easy |
102 | 102 | | # | Title | Solution | Time | Space | Video| |
103 | 103 | | --- | ----- | -------- | ---- | ----- | ---- | |
104 | | -|110|[Balanced Binary Tree](https://leetcode.com/problems/balanced-binary-tree/#/description)| [Python [Yu]](./tree/Yu/110_isBalanced.py) | _O(N)_| _O(h)_ | |
105 | | -|112|[Path Sum](https://leetcode.com/problems/path-sum/#/description)| [Python [Yu]](./tree/Yu/112_hasPathSum.py) | _O(N)_| _O(h)_ |[:tv:](https://www.youtube.com/watch?v=LgtcGjIuE18&feature=youtu.be)| |
106 | | -|100|[Same Tree](https://leetcode.com/problems/same-tree/)| [Python [Yu]](./tree/Yu/100_isSameTree.py) | _O(N)_| _O(1)_| |
107 | | -|101|[Symmetric Tree](https://leetcode.com/problems/symmetric-tree/#/description)| [Python [Yu]](./tree/Yu/101_symmetricTree.py)| _O(N)_| _O(1)_|[:tv:](https://youtu.be/3Gl4F29LVpQ)| |
| 104 | +|110|[Balanced Binary Tree](https://leetcode.com/problems/balanced-binary-tree/#/description)| [Python ](./tree/Yu/110_isBalanced.py) | _O(N)_| _O(h)_ | |
| 105 | +|112|[Path Sum](https://leetcode.com/problems/path-sum/#/description)| [Python ](./tree/Yu/112_hasPathSum.py) | _O(N)_| _O(h)_ |[:tv:](https://www.youtube.com/watch?v=LgtcGjIuE18&feature=youtu.be)| |
| 106 | +|100|[Same Tree](https://leetcode.com/problems/same-tree/)| [Python ](./tree/Yu/100_isSameTree.py) | _O(N)_| _O(1)_| |
| 107 | +|101|[Symmetric Tree](https://leetcode.com/problems/symmetric-tree/#/description)| [Python ](./tree/Yu/101_symmetricTree.py)| _O(N)_| _O(1)_|[:tv:](https://youtu.be/3Gl4F29LVpQ)| |
108 | 108 | |104|[Maximum Depth of Binary Tree](https://leetcode.com/problems/maximum-depth-of-binary-tree/)| [Python](./tree/Yu/104_maxDepth.py) | _O(N)_| _O(1)_ || |
109 | | -|108|[Convert Sorted Array to Binary Search Tree](https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/#/solutions)| [Python [Yu]](./tree/Yu/108.py) | _O(N)_| _O(N)_ |[:tv:](https://www.youtube.com/watch?v=lBrb4fXPcMM)| |
110 | | -|111|[Minimum Depth of Binary Tree](https://leetcode.com/problems/minimum-depth-of-binary-tree/#/description)| [Python [Yu]](https://github.com/yuzhoujr/LeetCode/blob/master/tree/Yu/111_minDepth.py)| _O(N)_| _O(1)_|| |
| 109 | +|108|[Convert Sorted Array to Binary Search Tree](https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/#/solutions)| [Python ](./tree/Yu/108.py) | _O(N)_| _O(N)_ |[:tv:](https://www.youtube.com/watch?v=lBrb4fXPcMM)| |
| 110 | +|111|[Minimum Depth of Binary Tree](https://leetcode.com/problems/minimum-depth-of-binary-tree/#/description)| [Python ](https://github.com/yuzhoujr/LeetCode/blob/master/tree/Yu/111_minDepth.py)| _O(N)_| _O(1)_|| |
111 | 111 | |235|[Lowest Common Ancestor of a Binary Search Tree](https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/#/description)| [Python](./tree/Yu/235_lca_bst.py) | _O(N)_| _O(1)_ || |
112 | | -|226|[Invert Binary Tree](https://leetcode.com/problems/invert-binary-tree/#/description)| [Python [Yu]](./tree/Yu/226.py) | _O(N)_| _O(1)_ |[:tv:](https://youtu.be/oiX3mqcAK0s)| |
113 | | -|543|[Diameter of Binary Tree](https://leetcode.com/problems/diameter-of-binary-tree/#/description)| [Python [Yu]](./tree/Yu/543.py) | _O(N)_| _O(h)_ |[:tv:](https://www.youtube.com/watch?v=0VnOfu2pYTo)| |
114 | | -|501|[Find Mode in Binary Search Tree](https://leetcode.com/problems/find-mode-in-binary-search-tree/#/description)| [Python [Yu]](./tree/Yu/501.py) | _O(N)_| _O(N)_ |[:tv:](https://youtu.be/v4F4x_uwMb8)| |
115 | | -|257|[Binary Tree Paths](https://leetcode.com/problems/binary-tree-paths/#/description)| [Python [Yu]](./tree/Yu/257.py) | _O(N)_| _O(N)_ |[:tv:](https://youtu.be/Zr_7qq2f16k)| |
116 | | -|572|[Subtree of Another Tree](https://leetcode.com/problems/subtree-of-another-tree/#/description)| [Python [Yu]](./tree/Yu/572.py) | _O(S*T)_| _O(1)_ |[:tv:](https://youtu.be/v4F4x_uwMb8)| |
117 | | -|437|[Path Sum III](https://leetcode.com/problems/path-sum-iii/#/description)| [Python [Yu]](./tree/Yu/437.py) | _O(N^2)_| _O(1)_ | |[:tv:](https://www.youtube.com/watch?v=NTyOEYYyv-o)| |
118 | | -|404|[Sum of Left Leaves](https://leetcode.com/problems/sum-of-left-leaves/#/description)| [Python [Yu]](./tree/Yu/404_sum_of_Left_Leaves.py) | _O(N)_| _O(1)_|[:tv:](https://youtu.be/pH-KxPcBF_4)| |
119 | | -|270|[Closest Binary Search Tree Value](https://leetcode.com/problems/closest-binary-search-tree-value/#/description)| [Python [Yu]](./tree/Yu/270.py)| _O(N)_| _O(1)_|[:tv:](https://youtu.be/RwvQyKJxHZk)| |
120 | | -|563|[Binary Tree Tilt](https://leetcode.com/problems/binary-tree-tilt/#/description)| [Python [Yu]](./tree/Yu/563.py) | _O(N)_| _O(1)_ |[:tv:](https://youtu.be/47FQVP4ynk0)| |
121 | | -|538|[Convert BST to Greater Tree](https://leetcode.com/problems/convert-bst-to-greater-tree/#/description)| [Python [Yu]](./tree/Yu/538.py) | _O(N)_| _O(1)_ |[:tv:](https://youtu.be/YoEPWtXmkD4)| |
| 112 | +|226|[Invert Binary Tree](https://leetcode.com/problems/invert-binary-tree/#/description)| [Python ](./tree/Yu/226.py) | _O(N)_| _O(1)_ |[:tv:](https://youtu.be/oiX3mqcAK0s)| |
| 113 | +|543|[Diameter of Binary Tree](https://leetcode.com/problems/diameter-of-binary-tree/#/description)| [Python ](./tree/Yu/543.py) | _O(N)_| _O(h)_ |[:tv:](https://www.youtube.com/watch?v=0VnOfu2pYTo)| |
| 114 | +|501|[Find Mode in Binary Search Tree](https://leetcode.com/problems/find-mode-in-binary-search-tree/#/description)| [Python ](./tree/Yu/501.py) | _O(N)_| _O(N)_ |[:tv:](https://youtu.be/v4F4x_uwMb8)| |
| 115 | +|257|[Binary Tree Paths](https://leetcode.com/problems/binary-tree-paths/#/description)| [Python ](./tree/Yu/257.py) | _O(N)_| _O(N)_ |[:tv:](https://youtu.be/Zr_7qq2f16k)| |
| 116 | +|572|[Subtree of Another Tree](https://leetcode.com/problems/subtree-of-another-tree/#/description)| [Python ](./tree/Yu/572.py) | _O(S*T)_| _O(1)_ |[:tv:](https://youtu.be/v4F4x_uwMb8)| |
| 117 | +|437|[Path Sum III](https://leetcode.com/problems/path-sum-iii/#/description)| [Python ](./tree/Yu/437.py) | _O(N^2)_| _O(1)_ | |[:tv:](https://www.youtube.com/watch?v=NTyOEYYyv-o)| |
| 118 | +|404|[Sum of Left Leaves](https://leetcode.com/problems/sum-of-left-leaves/#/description)| [Python ](./tree/Yu/404_sum_of_Left_Leaves.py) | _O(N)_| _O(1)_|[:tv:](https://youtu.be/pH-KxPcBF_4)| |
| 119 | +|270|[Closest Binary Search Tree Value](https://leetcode.com/problems/closest-binary-search-tree-value/#/description)| [Python ](./tree/Yu/270.py)| _O(N)_| _O(1)_|[:tv:](https://youtu.be/RwvQyKJxHZk)| |
| 120 | +|563|[Binary Tree Tilt](https://leetcode.com/problems/binary-tree-tilt/#/description)| [Python ](./tree/Yu/563.py) | _O(N)_| _O(1)_ |[:tv:](https://youtu.be/47FQVP4ynk0)| |
| 121 | +|538|[Convert BST to Greater Tree](https://leetcode.com/problems/convert-bst-to-greater-tree/#/description)| [Python ](./tree/Yu/538.py) | _O(N)_| _O(1)_ |[:tv:](https://youtu.be/YoEPWtXmkD4)| |
122 | 122 |
|
123 | 123 |
|
124 | 124 | ## Tree Medium |
125 | 125 | | # | Title | Solution | Time | Space | Video| |
126 | 126 | | --- | ----- | -------- | ---- | ----- | ---- | |
127 | | -|144|[Binary Tree Preorder Traversal](https://leetcode.com/problems/binary-tree-preorder-traversal/#/description)| [Python [Yu]](./tree/Yu/144.py) | _O(N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/cHbdPonjYS0)| |
128 | | -|102|[Binary Tree Level Order Traversal](https://leetcode.com/problems/binary-tree-level-order-traversal/#/description)| [Python [Yu]](./tree/Yu/102.py) | _O(N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/IWiprpdSgzg)| |
129 | | -|107|[Binary Tree Level Order Traversal II](https://leetcode.com/problems/binary-tree-level-order-traversal-ii/#/description)| [Python [Yu]](./tree/Yu/107.py) | _O(N)_| _O(N)_ | Medium | || |
130 | | -|515|[Find Largest Value in Each Tree Row](https://leetcode.com/problems/find-largest-value-in-each-tree-row/#/description)| [Python [Yu]](./tree/Yu/515.py) | _O(N)_| _O(1)_ | Medium | || |
131 | | -|236|[Lowest Common Ancestor of a Binary Tree](https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/#/description)| [Python [Yu]](./tree/Yu/236.py) | _O(N)_| _O(1)_ | Medium | |[:tv:](https://youtu.be/WqNULaUhPCc)| |
132 | | -|199|[Binary Tree Right Side View](https://leetcode.com/problems/binary-tree-right-side-view/#/description)| [Python [Yu]](./tree/Yu/199.py) | _O(N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/_iKUgRiUYKA)| |
133 | | -|114|[Flatten Binary Tree to Linked List](https://leetcode.com/problems/flatten-binary-tree-to-linked-list/#/solutions)| [Python [Yu]](./tree/Yu/114.py) | _O(N)_| _O(1)_ | Medium | |[:tv:](https://youtu.be/LfKRZ_qCmYQ)| |
134 | | -|230|[Kth Smallest Element in a BST](https://leetcode.com/problems/kth-smallest-element-in-a-bst/#/description)| [Python [Yu]](./tree/Yu/230.py) | _O(N)_| _O(1)_ | Medium | |[:tv:](https://youtu.be/CfNRc82ighw)| |
135 | | -|582|[Kill Process](https://leetcode.com/problems/kill-process/#/description)| [Python [Yu]](./tree/Yu/582.py) | _O(N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/fKR1n35Sj8s)| |
| 127 | +|144|[Binary Tree Preorder Traversal](https://leetcode.com/problems/binary-tree-preorder-traversal/#/description)| [Python ](./tree/Yu/144.py) | _O(N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/cHbdPonjYS0)| |
| 128 | +|102|[Binary Tree Level Order Traversal](https://leetcode.com/problems/binary-tree-level-order-traversal/#/description)| [Python ](./tree/Yu/102.py) | _O(N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/IWiprpdSgzg)| |
| 129 | +|107|[Binary Tree Level Order Traversal II](https://leetcode.com/problems/binary-tree-level-order-traversal-ii/#/description)| [Python ](./tree/Yu/107.py) | _O(N)_| _O(N)_ | Medium | || |
| 130 | +|515|[Find Largest Value in Each Tree Row](https://leetcode.com/problems/find-largest-value-in-each-tree-row/#/description)| [Python ](./tree/Yu/515.py) | _O(N)_| _O(1)_ | Medium | || |
| 131 | +|236|[Lowest Common Ancestor of a Binary Tree](https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/#/description)| [Python ](./tree/Yu/236.py) | _O(N)_| _O(1)_ | Medium | |[:tv:](https://youtu.be/WqNULaUhPCc)| |
| 132 | +|199|[Binary Tree Right Side View](https://leetcode.com/problems/binary-tree-right-side-view/#/description)| [Python ](./tree/Yu/199.py) | _O(N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/_iKUgRiUYKA)| |
| 133 | +|114|[Flatten Binary Tree to Linked List](https://leetcode.com/problems/flatten-binary-tree-to-linked-list/#/solutions)| [Python ](./tree/Yu/114.py) | _O(N)_| _O(1)_ | Medium | |[:tv:](https://youtu.be/LfKRZ_qCmYQ)| |
| 134 | +|230|[Kth Smallest Element in a BST](https://leetcode.com/problems/kth-smallest-element-in-a-bst/#/description)| [Python ](./tree/Yu/230.py) | _O(N)_| _O(1)_ | Medium | |[:tv:](https://youtu.be/CfNRc82ighw)| |
| 135 | +|582|[Kill Process](https://leetcode.com/problems/kill-process/#/description)| [Python ](./tree/Yu/582.py) | _O(N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/fKR1n35Sj8s)| |
136 | 136 |
|
137 | 137 |
|
138 | 138 | ## Backtrack Medium |
139 | 139 | | # | Title | Solution | Time | Space | Video| |
140 | 140 | | --- | ----- | -------- | ---- | ----- | ---- | |
141 | | -|78|[Subsets](https://leetcode.com/problems/subsets/#/description)| [Python [Yu]](./backtrack/Yu/78.py) | _O(N*(2^N))_| _O(2^N)_ | Medium | |[:tv:](https://youtu.be/Az3PfUep7gk)| |
142 | | -|90|[Subsets II](https://leetcode.com/problems/subsets-ii/#/description)| [Python [Yu]](./backtrack/Yu/90.py) | _O(N*(2^N))_| _O(2^N)_ | Medium | |[:tv:](https://youtu.be/Az3PfUep7gk)| |
143 | | -|46|[Permutations](https://leetcode.com/problems/permutations/#/description)| [Python [Yu]](./backtrack/Yu/46.py) | _O(N*(N!))_| _O(N!)_ | Medium | |[:tv:](https://www.youtube.com/watch?v=oCGMwvKUQ_I&feature=youtu.be)| |
144 | | -|47|[Permutations II](https://leetcode.com/problems/permutations/#/description)| [Python [Yu]](./backtrack/Yu/47.py) | _O(N*(N!))_| _O(N!)_ | Medium | |[:tv:](https://youtu.be/imLl2s9Ujis)| |
145 | | -|60|[Permutation Sequence](https://leetcode.com/problems/permutation-sequence/#/description)| [Python [Yu]](./backtrack/Yu/60.py) | _O(N * (N!)_| _O(N)_ | Medium | || |
146 | | -|77|[Combinations](https://leetcode.com/problems/combinations/#/description)| [Python [Yu]](./backtrack/Yu/77.py) | _O(N*(N!))_| _O(N!)_ | Medium | || |
147 | | -|39|[Combination Sum](https://leetcode.com/problems/combination-sum/#/description)| [Python [Yu]](./backtrack/Yu/39.py) | _O(K * (2^N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/HdS5dOaz-mk)| |
148 | | -|40|[Combination Sum II](https://leetcode.com/problems/combination-sum-ii/#/solutions)| [Python [Yu]](./backtrack/Yu/39.py) | _O(K * (2^N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/HdS5dOaz-mk)| |
149 | | -|216|[Combination Sum III](https://leetcode.com/problems/combination-sum-iii/#/description)| [Python [Yu]](./backtrack/Yu/216.py) | _O(K * (2^N)_| _O(N)_ | Medium | || |
| 141 | +|78|[Subsets](https://leetcode.com/problems/subsets/#/description)| [Python ](./backtrack/Yu/78.py) | _O(N*(2^N))_| _O(2^N)_ | Medium | |[:tv:](https://youtu.be/Az3PfUep7gk)| |
| 142 | +|90|[Subsets II](https://leetcode.com/problems/subsets-ii/#/description)| [Python ](./backtrack/Yu/90.py) | _O(N*(2^N))_| _O(2^N)_ | Medium | |[:tv:](https://youtu.be/Az3PfUep7gk)| |
| 143 | +|46|[Permutations](https://leetcode.com/problems/permutations/#/description)| [Python ](./backtrack/Yu/46.py) | _O(N*(N!))_| _O(N!)_ | Medium | |[:tv:](https://www.youtube.com/watch?v=oCGMwvKUQ_I&feature=youtu.be)| |
| 144 | +|47|[Permutations II](https://leetcode.com/problems/permutations/#/description)| [Python ](./backtrack/Yu/47.py) | _O(N*(N!))_| _O(N!)_ | Medium | |[:tv:](https://youtu.be/imLl2s9Ujis)| |
| 145 | +|60|[Permutation Sequence](https://leetcode.com/problems/permutation-sequence/#/description)| [Python ](./backtrack/Yu/60.py) | _O(N * (N!)_| _O(N)_ | Medium | || |
| 146 | +|77|[Combinations](https://leetcode.com/problems/combinations/#/description)| [Python ](./backtrack/Yu/77.py) | _O(N*(N!))_| _O(N!)_ | Medium | || |
| 147 | +|39|[Combination Sum](https://leetcode.com/problems/combination-sum/#/description)| [Python ](./backtrack/Yu/39.py) | _O(K * (2^N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/HdS5dOaz-mk)| |
| 148 | +|40|[Combination Sum II](https://leetcode.com/problems/combination-sum-ii/#/solutions)| [Python ](./backtrack/Yu/39.py) | _O(K * (2^N)_| _O(N)_ | Medium | |[:tv:](https://youtu.be/HdS5dOaz-mk)| |
| 149 | +|216|[Combination Sum III](https://leetcode.com/problems/combination-sum-iii/#/description)| [Python ](./backtrack/Yu/216.py) | _O(K * (2^N)_| _O(N)_ | Medium | || |
150 | 150 |
|
151 | 151 | ## Greedy Medium |
152 | 152 | | # | Title | Solution | Time | Space | Video| |
153 | 153 | | --- | ----- | -------- | ---- | ----- | ---- | |
154 | | -|452|[Minimum Number of Arrows to Burst Balloons](https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/#/description)| [Python [Yu]](./greedy/452.py) | _O(N)_| _O(1)_ | Medium| | |
| 154 | +|452|[Minimum Number of Arrows to Burst Balloons](https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/#/description)| [Python ](./greedy/452.py) | _O(N)_| _O(1)_ | Medium| | |
155 | 155 |
|
156 | 156 | ## Dynamic Programming Easy |
157 | 157 | | # | Title | Solution | Time | Space | Video| |
158 | 158 | | --- | ----- | -------- | ---- | ----- | ---- | |
159 | | -|70|[Climbing Stairs](https://leetcode.com/problems/climbing-stairs/#/solutions)| [Python [Yu]](./dp/70.py) | _O(N)_| _O(1)_ | Easy| | |
160 | | -|53|[Maximum Subarray](https://leetcode.com/problems/maximum-subarray/#/description)| [Python [Yu]](./dp/53.py) | _O(N)_| _O(N)_ | Easy|[:tv:](https://youtu.be/4tfhDdgu76E) | |
161 | | -|198|[House Robber](https://leetcode.com/problems/house-robber/#/description)| [Python [Yu]](./dp/198.py) | _O(N)_| _O(N)_ | Easy|[:tv:](https://youtu.be/QSjPkgyxCaQ) | |
| 159 | +|70|[Climbing Stairs](https://leetcode.com/problems/climbing-stairs/#/solutions)| [Python ](./dp/70.py) | _O(N)_| _O(1)_ | Easy| | |
| 160 | +|53|[Maximum Subarray](https://leetcode.com/problems/maximum-subarray/#/description)| [Python ](./dp/53.py) | _O(N)_| _O(N)_ | Easy|[:tv:](https://youtu.be/4tfhDdgu76E) | |
| 161 | +|198|[House Robber](https://leetcode.com/problems/house-robber/#/description)| [Python ](./dp/198.py) | _O(N)_| _O(N)_ | Easy|[:tv:](https://youtu.be/QSjPkgyxCaQ) | |
162 | 162 |
|
163 | 163 |
|
164 | 164 |
|
165 | 165 | ## Dynamic Programming Medium |
166 | 166 | | # | Title | Solution | Time | Space | Video| |
167 | 167 | | --- | ----- | -------- | ---- | ----- | ---- | |
168 | | -|64|[Minimum Path Sum](https://leetcode.com/problems/minimum-path-sum/#/submissions/1)| [Python [Yu]](./dp/64.py) | _O(N^2)_| _O(M*N)_ | Medium| [:tv:](https://youtu.be/bEcW6QqgXvM)| |
169 | | -|62|[Unique Paths](https://leetcode.com/problems/unique-paths/#/description)| [Python [Yu]](./dp/62.py) | _O(N^2)_| _O(M*N)_ | Medium| Reference #64| |
170 | | -|55|[Jump Game](https://leetcode.com/problems/jump-game/)| [Python [Yu]](./dp/55.py) | _O(N^2)_| _O(1)_ | Medium| TLE with DP/Use Greedy for O(N) Solution| |
171 | | -|45|[Jump Game II](https://leetcode.com/problems/jump-game-ii/#/description)| [Python [Yu]](./dp/55.py) | _O(N^2)_| _O(1)_ | Medium| TLE with DP/Use Greedy for O(N) Solution | |
172 | | -|300|[Longest Increasing Subsequence](https://leetcode.com/problems/longest-increasing-subsequence/#/description)| [Python [Yu]](./dp/300.py) | _O(N^2)_| _O(1)_ | Medium| Use Binary-Search for NlogN Solution| |
| 168 | +|64|[Minimum Path Sum](https://leetcode.com/problems/minimum-path-sum/#/submissions/1)| [Python ](./dp/64.py) | _O(N^2)_| _O(M*N)_ | Medium| [:tv:](https://youtu.be/bEcW6QqgXvM)| |
| 169 | +|62|[Unique Paths](https://leetcode.com/problems/unique-paths/#/description)| [Python ](./dp/62.py) | _O(N^2)_| _O(M*N)_ | Medium| Reference #64| |
| 170 | +|55|[Jump Game](https://leetcode.com/problems/jump-game/)| [Python ](./dp/55.py) | _O(N^2)_| _O(1)_ | Medium| TLE with DP/Use Greedy for O(N) Solution| |
| 171 | +|45|[Jump Game II](https://leetcode.com/problems/jump-game-ii/#/description)| [Python ](./dp/55.py) | _O(N^2)_| _O(1)_ | Medium| TLE with DP/Use Greedy for O(N) Solution | |
| 172 | +|300|[Longest Increasing Subsequence](https://leetcode.com/problems/longest-increasing-subsequence/#/description)| [Python ](./dp/300.py) | _O(N^2)_| _O(1)_ | Medium| Use Binary-Search for NlogN Solution| |
173 | 173 |
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174 | 174 |
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175 | 175 |
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