Python code for finding the longest common subsequence

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  • Rina0
    New Member
    • Jul 2023
    • 13

    Python code for finding the longest common subsequence

    I am looking for a Python code to find the longest common subsequence of two strings. I found this blog post that describes the length of longest common subsequence problem and provides a solution in Java. Can anyone help me translate the Java code into Python?

    Here is the Java code from the blog post:

    Code:
    java
    public static int longestCommonSubsequence(String X, String Y) {
    int m = X.length();
    int n = Y.length();
    int[][] dp = new int[m + 1][n + 1];
    for (int i = 0; i <= m; i++) {
    for (int j = 0; j <= n; j++) {
    if (i == 0 || j == 0) {
    dp[i][j] = 0;
    } else if (X.charAt(i - 1) == Y.charAt(j - 1)) {
    dp[i][j] = dp[i - 1][j - 1] + 1;
    } else {
    dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);
    }
    }
    }
    return dp[m][n];
    }
    I would appreciate any help with this. Thank you!
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