Home/ Questions/Q 5375
Next
In Process

SIKSHAPATH Latest Questions

Berlin
  • 0
  • 0
Asked: 2021-11-18T00:19:05+05:30 In:

Given two strings first and second, consider occurrences in some text of the form “first second third”, where second comes immediately after first, and third comes

  • 0
  • 0

Given two strings first and second, consider occurrences in some text of the form “first second third”, where second comes immediately after first, and third comes immediately after second. Return an array of all the words third for each occurrence of “first second third”.

 

Example

Input: text = “alice is a good girl she is a good student”, first = “a”, second = “good”

 

Output: [“girl”,”student”]

 

Constraints:

1 <= text.length<= 1000
text consists of lowercase English letters and spaces.
All the words in text a separated by a singlespace.
1 <= first.length, second.length <= 10
first and second consist of lowercase English letters.

occurrences after bigram
Share

    1 Answer

    2. I'M ADMIN
      
class Solution {
public:
    vector findOcurrences(string text, string first, string second) {
        vector res, words;
        istringstream iss(text);
        string t;
        while (iss >> t) {
            int n = words.size();
            if (n >= 2 && words.back() == second && words[n - 2] == first) res.push_back(t);
            words.push_back(t);
        }
        return res;
    }
};

    Leave an answer

    You must login to add an answer.

    Need An Account,