목록1639. Number of Ways to Form a Target String Given a Dictionary (1)

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LeetCode: 1639. Number of Ways to Form a Target String Given a Dictionary

A dynamic programming approach: Let dp[i, j] be the total number of cases of target[i] corresponding to jth position dp[i, j] = dp[i][j-1] + dp[i-1][j-1] * counter[j, target[i]] 1) Bottom-up import string from functools import lru_cache class Solution: def numWays(self, words: List[str], target: str) -> int: N = len(words[0]) freqs = [{c: 0 for c in string.ascii_lowercase} for _ in range(N)] for..
Computer Science/Algorithms & Data Structures 2023. 4. 7. 00:23
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