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208. Implement Trie (Prefix Tree) 💫 #72
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Codecov Report
@@ Coverage Diff @@ ## master #72 +/- ## ========================================== + Coverage 99.33% 99.34% +0.01% ========================================== Files 111 112 +1 Lines 1926 1951 +25 ========================================== + Hits 1913 1938 +25 Misses 9 9 Partials 4 4
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Medium
Coefficient of difficulty medium
Trie
trie,又称前缀树或字典树,是一种有序树,用于保存关联数组,其中的键通常是字符串。
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Jan 31, 2019
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https://leetcode.com/problems/implement-trie-prefix-tree/
Implement a trie with insert, search, and startsWith methods.
Note:
You may assume that all inputs are consist of lowercase letters a-z.
All inputs are guaranteed to be non-empty strings.