Tanssiaiset

input/code.cpp: In function 'int main()':
input/code.cpp:12:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 0; j < p.size(); j++) {
                     ^

#include <bits/stdc++.h>
using namespace std;

int main() {
	int n;
	cin >> n;

	vector<int> p,c;
	for (int i = 0; i < n + 2; i++) {
		int a;
		cin >> a;
		for (int j = 0; j < p.size(); j++) {
			if (a == p[j]) {
				c.push_back(i);
				c.push_back(j);
				break;
			}
		}
		p.push_back(a);
		if (c.size() > 3) break;
	}

	sort(c.begin(), c.end());
	for (int i = 0; i < 3; i++)
		if (c[i]%2 == 0 && c[i+1] == c[i] + 1)
 			cout << p[c[i]] << " " << p[c[i+1]] << endl;
	return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 7

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 8

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 9

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 10

Group: 2

Verdict: ACCEPTED