芒硝是什么

[{word=张三, score=2}, {word=张散, score=3}, {word=张丹, score=4}, {word=张成, score=7}, {word=李四, score=18}, {word=李奎, score=20}]

public static int getEditDistance(String s, String t) {
        int d[][]; // matrix
        int n; // length of s
        int m; // length of t
        int i; // iterates through s
        int j; // iterates through t
        char s_i; // ith character of s
        char t_j; // jth character of t
        int cost; // cost
        // Step 1
        n = s.length();
        m = t.length();
        if (n == 0) {
            return m;
        }
        if (m == 0) {
            return n;
        }
        d = new int[n + 1][m + 1];

        // Step 2
        for (i = 0; i <= n; i++) {
            d[i][0] = i;
        }
        for (j = 0; j <= m; j++) {
            d[0][j] = j;
        }

        // Step 3
        for (i = 1; i <= n; i++) {
            s_i = s.charAt(i - 1);
            // Step 4
            for (j = 1; j <= m; j++) {
                t_j = t.charAt(j - 1);
                // Step 5
                cost = (s_i == t_j) ? 0 : 1;
                // Step 6
                d[i][j] = Minimum(d[i - 1][j] + 1, d[i][j - 1] + 1,
                        d[i - 1][j - 1] + cost);
            }
        }
        // Step 7
        return d[n][m];
    }