刷题记录：1143. 最长公共子序列

刷题记录：1143. 最长公共子序列

1143. 最长公共子序列
常规动态规划

class Solution:
    def longestCommonSubsequence(self, text1: str, text2: str) -> int:
        n1, n2 = len(text1), len(text2)

        dp = [[0] * (n2 + 1) for _ in range(n1 + 1)]

        for i in range(1, n1 + 1):
            for j in range(1, n2 + 1):
                if text1[i - 1] == text2[j - 1]:
                    dp[i][j] = 1 + dp[i-1][j-1]
                else:
                    dp[i][j] = max(
                        dp[i-1][j],dp[i][j-1]
                    )
        return dp[-1][-1]