Tag: a-dfs

All the articles with the tag "a-dfs".

• LeetCode 1202 Smallest String With Swaps

  27 Sep, 2026

  Solutions for LeetCode 1202, medium, tags: array, hash table, string, depth-first search, breadth-first search, union find, sorting.

• LeetCode 1448 Count Good Nodes in Binary Tree

  24 Sep, 2026

  Solutions for LeetCode 1448, medium, tags: tree, depth-first search, breadth-first search, binary tree.

• LeetCode 226 Invert Binary Tree

  20 Sep, 2026

  Solutions for LeetCode 226, easy, tags: tree, depth-first search, breadth-first search, binary tree.

• LeetCode 211 Design Add and Search Words Data Structure

  15 Sep, 2026

  Solutions for LeetCode 211, medium, tags: string, depth-first search, design, trie.

• LeetCode 572 Subtree of Another Tree

  14 Sep, 2026

  Solutions for LeetCode 572, easy, tags: tree, dfs, string matching, binary tree, hash function.

• LeetCode 802 Find Eventual Safe States

  10 Sep, 2026

  Solutions for LeetCode 802, medium, tags: depth-first search, breadth-first search, graph, topological sort.