Submission #716497

#	Time	Username	Problem	Language	Result	Execution time	Memory
716497		faribourz	Love Polygon (BOI18_polygon)	C++14	0 / 100	3 ms	332 KiB

polygon

// Only GOD
// Believe in yourself!
// -o Sango zadam be shishe 
// -o Comeback bezan hamishe!
 
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
 
#define pb push_back
#define F first
#define S second
#define bit(x, y) (x >> y)&1
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define kill(x) return cout << x << '\n', void()
#define KILL(x) return cout << x << '\n', 0
#define int ll
#define mid ((l+r)>>1)
#define lid (id << 1)
#define rid (lid | 1)
const int N = 3e5+10;
const int INF = 1e9+10;
int32_t main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	// random submit
	int n;
	cin >> n;
	for(int i = 0; i < n; i++){
		int s, t;
		cin >> s >> t;
	}
	if(n & 1)
		KILL(-1);
	KILL(n/2);
}

• Subtask 1: 0 / 21
• Subtask 2: 0 / 25
• Subtask 3: 0 / 29
• Subtask 4: 0 / 25