Submission #850467

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
850467	2023-09-16 15:21:03	MinaRagy06	Stranded Far From Home (BOI22_island)	C++17	25 / 100	1045 ms	524288 KiB

island

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#include <bits/stdc++.h>
using namespace std;
typedef int64_t ll;
const int N = 200'005;
int par[N], sz[N], bad[N];
ll cnt[N], a[N];
vector<int> adj[N];
pair<int, int> find(int u) {
    if (par[u] == u) {
        return {u, bad[u]};
    }
    pair<int, int> v = find(par[u]);
    bad[u] |= v.second;
    par[u] = v.first;
    return {par[u], bad[u]};
}
void join(int u, int v) {
    u = find(u).first, v = find(v).first;
    if (u == v) return;
    par[v] = u, sz[u] += sz[v], cnt[u] += cnt[v];
    for (auto nxt : adj[v]) {
        int x = find(nxt).first;
        if (x != u) {
            adj[u].push_back(nxt);
        }
    }
    adj[v].clear();
}
int main() {
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 15 / 15
• Subtask 4: 0 / 30
• Subtask 5: 0 / 35