_{[208 - Implement Trie](https://leetcode.com/problems/implement-trie-prefix-tree/)} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>}

_{[211 - Design Add and Search Word Data Structure](https://leetcode.com/problems/design-add-and-search-words-data-structure/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>}

_{[212 - Word Search II](https://leetcode.com/problems/word-search-ii/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>}

_{[703 - Kth Largest Element in a Stream](https://leetcode.com/problems/kth-largest-element-in-a-stream/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>}

_{[703 - Kth Largest Element in a Stream](https://leetcode.com/problems/kth-largest-element-in-a-stream/)} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>}

_{[1046 - Last Stone Weight](https://leetcode.com/problems/last-stone-weight/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>}

_{[973 - K Closest Points to Origin](https://leetcode.com/problems/k-closest-points-to-origin/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>}

_{[215 - Kth Largest Element in an Array](https://leetcode.com/problems/kth-largest-element-in-an-array/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>}

_{[200 - Number of Islands](https://leetcode.com/problems/number-of-islands/)} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>}

_{[133 - Clone Graph](https://leetcode.com/problems/clone-graph/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>}

_{[695 - Max Area of Island](https://leetcode.com/problems/max-area-of-island/)} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>}

_{[417 - Pacific Atlantic Waterflow](https://leetcode.com/problems/pacific-atlantic-water-flow/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>}

_{[417 - Pacific Atlantic Waterflow](https://leetcode.com/problems/pacific-atlantic-water-flow/)} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>}

_{[130 - Surrounded Regions](https://leetcode.com/problems/surrounded-regions/)} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>}

_{[994 - Rotting Oranges](https://leetcode.com/problems/rotting-oranges/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>}

_{[286 - Walls and Gates](https://leetcode.com/problems/walls-and-gates/)} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>✔️</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>} | _{<divalign='center'>❌</div>}