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Leetcode Problem 1032. Stream of Characters

1032. Stream of Characters

Leetcode Solutions

Trie with Reversed Words and Stream

  1. Initialize the Trie root node.
  2. For each word in the input list, insert the reversed word into the Trie.
  3. For each query with a new character, add the character to the beginning of the current stream state.
  4. Traverse the Trie from the root node using the characters in the current stream state in reverse order.
  5. If a leaf node (end of a word) is reached during the traversal, return true.
  6. If the traversal is interrupted because there is no path in the Trie that matches the stream, return false.
  7. Limit the length of the current stream state to the length of the longest word to optimize space.
UML Thumbnail

Brute Force with Stream Suffix Checking

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