View difference between Paste ID: w447zGPA and 9RZLaLuj

 #include <algorithm>
 #include <iostream>
 #include <vector>
 #include <string>
 
 using namespace std;
 
 string ReadLine() {
     string s;
     getline(cin, s);
     return s;
 }
 
 int ReadLineWithNumber() {
     int result;
     cin >> result;
     ReadLine();
     return result;
 }
 
 vector<string> SplitIntoWords(const string& text) {
     vector<string> words;
     string word;
     for (const char c : text) {
         if (c == ' ') {
             if (!word.empty()) {
                 words.push_back(word);
                 word.clear();
             }
         } else {
             word += c;
         }
     }
     if (!word.empty()) {
         words.push_back(word);
     }
 
     return words;
 }
 
 int main() {
     const int queryCount = ReadLineWithNumber();
 
     vector<string> queries(queryCount);
     for (string& query : queries) {
         query = ReadLine();
     }
     const string buzzword = ReadLine();
 
     cout << count_if(queries.begin(), queries.end(), [buzzword](const string& query) {
         const vector<string> query_words = SplitIntoWords(query);
         return count(query_words.begin(), query_words.end(), buzzword) != 0;
     });
     cout << endl;
 }