leeCode刷题 1078
给出第一个词 first 和第二个词 second,考虑在某些文本 text 中可能以 "first second third" 形式出现的情况,其中 second 紧随 first 出现,third 紧随 second 出现。
对于每种这样的情况,将第三个词 "third" 添加到答案中,并返回答案。
示例 1:
输入:text = "alice is a good girl she is a good student", first = "a", second = "good"
输出:["girl","student"]
示例 2:
输入:text = "we will we will rock you", first = "we", second = "will"
输出:["we","rock"]
提示:
1 <= text.length <= 1000
text 由一些用空格分隔的单词组成,每个单词都由小写英文字母组成
1 <= first.length, second.length <= 10
first 和 second 由小写英文字母组成
class Solution {
public String[] findOcurrences(String text, String first, String second) {
String[] words = text.split(" ");
List<String> res = new LinkedList();
for(int i = 0; i < words.length-2; i++){
if(words[i].equals(first) && words[i+1].equals(second)){
res.add(words[i+2]);
}
}
return res.toArray(new String[res.size()]);
}
}