[doh6077] WEEK 05 Solutions #2164
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se6816
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Dec 13, 2025
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| # 208. Implement Trie (Prefix Tree) | ||
| class Trie: | ||
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| def __init__(self): | ||
| self.list = [] | ||
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| def insert(self, word: str) -> None: | ||
| self.list.append(word) | ||
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| def search(self, word: str) -> bool: | ||
| if word in self.list: | ||
| return True | ||
| else: | ||
| return False | ||
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| def startsWith(self, prefix: str) -> bool: | ||
| for i, value in enumerate(self.list): | ||
| if value.startswith(prefix): | ||
| return True | ||
| return False |
Contributor
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그리고, 통과는 되었지만, Trie 구조와는 거리가 먼 것으로 보여서, 시간이 되시면, 한 번 만들어 보시는 것도 좋을 것 같습니다!
se6816
reviewed
Dec 13, 2025
| start = i - len(w) | ||
| if start >= 0 and dp[start] and s[start:i] == w: | ||
| dp[i] = True | ||
| break |
Contributor
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해당 문제를 LIS dp 문제와 유사하게 풀 수 있었군요. 좋은 경험이었습니다.
se6816
approved these changes
Dec 13, 2025
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