leet-code/src/main/java/leetcode/editor/cn/LongestWordInDictionaryThroughDeleting.java

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//给你一个字符串 s 和一个字符串数组 dictionary 作为字典,找出并返回字典中最长的字符串,该字符串可以通过删除 s 中的某些字符得到。
//
// 如果答案不止一个,返回长度最长且字典序最小的字符串。如果答案不存在,则返回空字符串。
//
//
//
// 示例 1
//
//
//输入s = "abpcplea", dictionary = ["ale","apple","monkey","plea"]
//输出:"apple"
//
//
// 示例 2
//
//
//输入s = "abpcplea", dictionary = ["a","b","c"]
//输出:"a"
//
//
//
//
// 提示:
//
//
// 1 <= s.length <= 1000
// 1 <= dictionary.length <= 1000
// 1 <= dictionary[i].length <= 1000
// s 和 dictionary[i] 仅由小写英文字母组成
//
// Related Topics 数组 双指针 字符串 排序 👍 214 👎 0
package leetcode.editor.cn;
import java.util.*;
//524:通过删除字母匹配到字典里最长单词
class LongestWordInDictionaryThroughDeleting {
public static void main(String[] args) {
//测试代码
Solution solution = new LongestWordInDictionaryThroughDeleting().new Solution();
}
//力扣代码
//leetcode submit region begin(Prohibit modification and deletion)
class Solution {
public String findLongestWord(String s, List<String> dictionary) {
dictionary.sort((o1, o2) -> o2.length() != o1.length() ? o2.length() - o1.length() : o1.compareTo(o2));
for (String str : dictionary) {
int i = 0, j = 0;
while (i < str.length() && j < s.length()) {
if (str.charAt(i) == s.charAt(j)) {
i++;
}
j++;
}
if (i == str.length()) {
return str;
}
}
return "";
}
}
//leetcode submit region end(Prohibit modification and deletion)
}