Leimasin

input/code.cpp: In function 'int main()':
input/code.cpp:22:57: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |                 while (!q.empty() && i - q.top().second >= s.size()) {
      |                                      ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~

#include <iostream>
#include <queue>

using namespace std;

int main() {
	int n, m, k;
	cin >> n >> m >> k;

	string s;
	cin >> s;

	int p[n] {};
	for (int i = 1; i <= k; ++i) {
		int x;
		cin >> x;
		p[x - 1] = i;
	}

	priority_queue<pair<int, int>> q;
	for (int i = 0; i < n; ++i) {
		while (!q.empty() && i - q.top().second >= s.size()) {
			q.pop();
		}

		if (p[i]) {
			q.emplace(p[i], i);
		}

		if (q.empty()) {
			cout << '.';
		} else {
			cout << s[i - q.top().second];
		}
	}
	cout << endl;
}

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

Test 5

Group: 2, 3

Verdict: ACCEPTED

Test 6

Group: 2, 3

Verdict: ACCEPTED

Test 7

Group: 2, 3

Verdict: ACCEPTED

Test 8

Group: 2, 3

Verdict: ACCEPTED

Test 9

Group: 3

Verdict: ACCEPTED

Test 10

Group: 3

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED