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
来源:力扣(LeetCode)
链接:https://leetcode-cn.com/problems/occurrences-after-bigram
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class Solution {
public String[] findOcurrences(String text, String first, String second) {
String[] array = text.split(" ");
int length = array.length;
List<String>list = new ArrayList();
for(int i = 0; i < length; i++){
if(i + 2 < length && first.equals(array[i]) && second.equals(array[i + 1])){
list.add(array[i + 2]);
}
}
int listLength = list.size();
String[]result = new String[listLength];
for(int i = 0; i < listLength; i++){
result[i] = list.get(i);
}
return result;
}
}
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