Buzzwords

input/code.cpp: In function 'int string_matching(std::string, std::string)':
input/code.cpp:27:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (int i = pattern_length + 1; i < z_array.size(); ++i) {
      |                                      ~~^~~~~~~~~~~~~~~~

#include <bits/stdc++.h>

using namespace std;

vector<int> z(string s) {
    int n = s.size();
    vector<int> z(n);
    z[0] = n;
    int x = 0, y = 0;

    for (int i = 1; i < n; i++) {
        z[i] = max(0,min(z[i-x],y-i+1));
        while (i+z[i] < n && s[z[i]] == s[i+z[i]]) {
            x = i; y = i+z[i]; z[i]++;
        }
    }

    return z;
}

int string_matching(string word, string pattern) {
    int pattern_length = pattern.length();
    string combined = pattern + "#" + word;
    vector<int> z_array = z(combined);

    int count = 0;
    for (int i = pattern_length + 1; i < z_array.size(); ++i) {
        if (z_array[i] == pattern_length) {
            count++;
        }
    }

    return count;
}

int main() {

    ios::sync_with_stdio(0);
    cin.tie(0);
    
    string text;
    getline(cin, text);

    int q;
    cin >> q;
    cin.ignore();

    int count = 0;


    for (int i = 0; i < q; ++i) {
        string word;
        getline(cin, word);
        //cout << "The word is " << word << endl;
        count += string_matching(text, word);
        //cout << count << endl;
    }


    cout << count << "\n";

}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED

Test 16

Verdict: ACCEPTED

Test 17

Verdict: ACCEPTED

Test 18

Verdict: ACCEPTED

Test 19

Verdict: ACCEPTED

Test 20

Verdict: ACCEPTED

Test 21

Verdict: ACCEPTED

Test 22

Verdict: ACCEPTED

Test 23

Verdict: ACCEPTED

Test 24

Verdict: ACCEPTED

Test 25

Verdict: ACCEPTED

Test 26

Verdict: ACCEPTED

Test 27

Verdict: ACCEPTED

Test 28

Verdict: ACCEPTED

Test 29

Verdict: ACCEPTED

Test 30

Verdict: ACCEPTED

Test 31

Verdict: ACCEPTED

Test 32

Verdict: ACCEPTED

Test 33

Verdict: ACCEPTED

Test 34

Verdict: ACCEPTED

Test 35

Verdict: ACCEPTED

Test 36

Verdict: ACCEPTED

Test 37

Verdict: ACCEPTED

Test 38

Verdict: ACCEPTED

Test 39

Verdict: ACCEPTED

Test 40

Verdict: ACCEPTED

Test 41

Verdict: ACCEPTED

Test 42

Verdict: ACCEPTED

Test 43

Verdict: ACCEPTED

Test 44

Verdict: ACCEPTED