| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1335641 | gamigafy | Stranded Far From Home (BOI22_island) | C++20 | 1095 ms | 13500 KiB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define sz(x) (int)(x).size()
void solve() {
int n, m;
cin >> n >> m;
vector<ll> s(n);
for (auto &x : s) {
cin >> x;
}
vector<vector<int>> adj(n);
for (int i = 0; i < m; i++) {
int u, v;
cin >> u >> v;
u--, v--;
adj[u].push_back(v);
adj[v].push_back(u);
}
ll tot = accumulate(s.begin(), s.end(), 0LL);
auto bfs = [&](int x) {
vector<bool> vis(n);
priority_queue<pair<int, int>> pq;
pq.emplace(0, x);
vis[x] = true;
ll res = s[x];
while (!pq.empty()) {
auto [siz, u] = pq.top();
pq.pop();
if (res >= -siz) {
res -= siz;
for (int v : adj[u]) {
if (!vis[v]) {
vis[v] = true;
pq.emplace(-s[v], v);
}
}
}
}
return res == tot;
};
for (int i = 0; i < n; i++) {
cout << (bfs(i) ? 1 : 0);
}
cout << '\n';
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t = 1;
// cin >> t;
while (t--) solve();
return 0;
}
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