代码随想录算法训练营 Day 56 | 583.两个字符串的删除操作,72.编辑距离,编辑距离总结

583.两个字符串的删除操作

讲解链接：代码随想录-583.两个字符串的删除操作

public int minDistance(String word1, String word2) {
    int[][] dp = new int[word1.length() + 1][word2.length() + 1];
    for (int i = 0; i <= word1.length(); i++) {
        dp[i][0] = i;
    }
    for (int j = 0; j <= word2.length(); j++) {
        dp[0][j] = j;
    }
    for (int i = 1; i <= word1.length(); i++) {
        for (int j = 1; j <= word2.length(); j++) {
            if (word1.charAt(i - 1) == word2.charAt(j - 1)) {
                dp[i][j] = dp[i - 1][j - 1];
            } else {
                dp[i][j] = Math.min(dp[i - 1][j], dp[i][j - 1]) + 1;
            }
        }
    }
    return dp[word1.length()][word2.length()];
}

72.编辑距离

讲解链接：代码随想录-72.编辑距离

public int minDistance(String word1, String word2) {
    int[][] dp = new int[word1.length() + 1][word2.length() + 1];
    for (int i = 0; i <= word1.length(); i++) {
        dp[i][0] = i;
    }
    for (int j = 0; j <= word2.length(); j++) {
        dp[0][j] = j;
    }
    for (int i = 1; i <= word1.length(); i++) {
        for (int j = 1; j <= word2.length(); j++) {
            if (word1.charAt(i - 1) == word2.charAt(j - 1)) {
                dp[i][j] = dp[i - 1][j - 1];
            } else {
                dp[i][j] = Math.min(dp[i - 1][j - 1], Math.min(dp[i - 1][j], dp[i][j - 1])) + 1;
            }
        }
    }
    return dp[word1.length()][word2.length()];
}

编辑距离总结

讲解链接：代码随想录-编辑距离总结