src/main/java/com/fishercoder/solutions/_583.java

package com.fishercoder.solutions;

public class _583 {

    public static class Solution1 {

        public int minDistance(String word1, String word2) {
            int m = word1.length();
            int n = word2.length();
            int[][] dp = new int[m + 1][n + 1];
            for (int i = 1; i <= m; i++) {
                for (int j = 1; j <= n; j++) {
                    dp[i][j] = word1.charAt(i - 1) == word2.charAt(j - 1) ? dp[i - 1][j - 1] + 1 : Math.max(dp[i - 1][j], dp[i][j - 1]);
                }
            }
            return m + n - 2 * dp[m][n];
        }
    }

}