Submission #1179402

#	Time	Username	Problem	Language	Result	Execution time	Memory
1179402		Iskachun	Stranded Far From Home (BOI22_island)	C++20	0 / 100	1096 ms	14576 KiB

island

#include <iostream>
#include <vector>
#include <algorithm>
#include <queue>
using namespace std;
typedef long long ll;
void solve() {
    int n, m; cin >> n >> m;
    vector<int> a(n);
    for (int &x : a) cin >> x;
    vector<vector<int>> g(n);
    while (m--) {
        int u, v; cin >> u >> v;
        g[--u].push_back(--v), g[v].push_back(u);
    }
    for (int i = 0; i < n; i++) {
        sort(g[i].begin(), g[i].end(), [&](int x, int y) {
            return a[x] < a[y];
        });
    }
    vector<int> vis(n);
    queue<int> q;
    for (int i = 0; i < n; i++) {
        vis = vector<int> (n);
        vis[i] = 1;
        q.push(i);
        int tot = a[i];
        while (q.size()) {
            int v = q.front(); q.pop();
            for (int u : g[v]) {
                if (!vis[u] and a[u] <= tot) {
                    tot += a[u];
                    vis[u] = 1;
                    q.push(u);
                }
            }
        }
        int flag = 1;
        for (int x : vis) flag &= x;
        cout << flag;
    }
}

int main() {
    //freopen("filename.in", "r", stdin), freopen("filename.out", "w", stdout);
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int t = 1; //cin >> t;
    while (t--) solve();
}

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