Tietoverkko

input/code.cpp: In function 'int main()':
input/code.cpp:34:10: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout << p << endl;
          ^
input/code.cpp:16:2: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
  for(int i; i<(n*2); i++) {
  ^

#include <bits/stdc++.h>

using namespace std;



int main() {
	cin.tie(0);
	ios_base::sync_with_stdio(0);
	int n;
	int p;
	vector<int> v;
	vector<int> w;

	cin >> n;
	for(int i; i<(n*2); i++) {
		int inp; 
		cin >> inp;
		v.push_back(inp);
	}
	w = v;
	sort(w.begin(),w.end());
	for(int i = 0; i<n*2; i++) {
		if(i==0) {
			if(w[i] != w[i+1]) p++;
		}
		else if(i==(n*2)-1) {
			if(w[i] != w[i-1]) p++;
		}
		else {
			if((w[i] != w[i-1]) && (w[i] != w[i+1]) ) p++;
		}
	}
	cout << p << endl;
}

Test 1

Group: 1

Verdict: WRONG ANSWER

Test 2

Group: 1

Verdict: WRONG ANSWER

Test 3

Group: 1

Verdict: WRONG ANSWER

Test 4

Group: 1

Verdict: WRONG ANSWER

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: WRONG ANSWER

Test 7

Group: 2

Verdict: WRONG ANSWER

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: WRONG ANSWER

Test 10

Group: 2

Verdict: ACCEPTED