Tanssiaiset

input/code.cpp: In function 'int main()':
input/code.cpp:17:6: warning: unused variable 'in' [-Wunused-variable]
  int in;
      ^

#include<bits/stdc++.h>
using namespace std;
vector<int> t[101010];
int main()
{
	vector<vector<int> > parit;
	int n; cin >> n;
	for(int i = 0; i < n/2+1; i++)
	{
		int x, y; cin >> x >> y;
		t[x-1].push_back(y-1);
		t[y-1].push_back(x-1);
		vector<int> temp;
		temp.push_back(x); temp.push_back(y);
		parit.push_back(temp);
	}
	int in;
	int p1, p2; p1 = 0; p2 = 0;
	for(int i = 0; i < n; i++)
	{
		if(t[i].size() > 1)
		{
			if(p1 != 0)
			{
				p2 = i;
			}
			else
			{
				p1 = i;
			}
		}
	}
	p2++; p1++;
	for(int i = 0; i < n/2+1; i++)
	{
		if(parit[i][0] == p1 || parit[i][0] == p2)
		{
		//	cout << "AA" << "\n";
			if(parit[i][1] == p2 || parit[i][1] == p1)
			{
				cout << parit[i][0] << " " << parit[i][1] << "\n";
				break;
			}
		}
	}
	
}

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: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED