Submission #591155

#	Time	Username	Problem	Language	Result	Execution time	Memory
591155		tutis	Stranded Far From Home (BOI22_island)	C++17	10 / 100	1092 ms	13664 KiB

island

/*input
4 3
4 2 2 1
1 2
3 2
4 1
*/
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main()
{
	ios_base::sync_with_stdio(false);
	int N, M;
	cin >> N >> M;
	int S[N];
	for (int i = 0; i < N; i++)
		cin >> S[i];
	vector<int>adj[N];
	while (M--)
	{
		int a, b;
		cin >> a >> b;
		a--;
		b--;
		adj[a].push_back(b);
		adj[b].push_back(a);
	}
	vector<bool>ret(N, false);
	for (int i = 0; i < N; i++)
	{
		vector<bool>vis(N, false);
		vis[i] = true;
		ll sum = S[i];
		set<pair<int, int>>Q;
		for (int j : adj[i])
		{
			vis[j] = true;
			Q.insert({S[j], j});
		}
		int cnt = 1;
		while (!Q.empty())
		{
			int i = Q.begin()->second;
			Q.erase(Q.begin());
			if (S[i] <= sum)
			{
				sum += S[i];
				cnt++;
				for (int j : adj[i])
				{
					if (vis[j] == false)
					{
						vis[j] = true;
						Q.insert({S[j], j});
					}
				}
			}
			else
				break;
		}
		if (cnt == N)
			ret[i] = true;
	}
	for (int i : ret)
		cout << i;
	cout << "\n";
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 30
• Subtask 5: 0 / 35