Submission #695208

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
695208	2023-02-04 19:25:39	finn__	Stranded Far From Home (BOI22_island)	C++17	100 / 100	219 ms	43428 KiB

island

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#include <bits/stdc++.h>
using namespace std;
struct DSU
{
    vector<int64_t> parent, weight;
    vector<vector<int64_t>> components;
    DSU(size_t n, vector<int64_t> const &s)
    {
        parent = vector<int64_t>(n, -1);
        weight = vector<int64_t>(s.begin(), s.end());
        components = vector<vector<int64_t>>(n);
        for (size_t i = 0; i < n; i++)
            components[i].push_back(i);
    }
    int root(int u)
    {
        return parent[u] < 0 ? u : parent[u] = root(parent[u]);
    }
    void merge(int u, int v)
    {
        u = root(u), v = root(v);
        if (u == v)
            return;
        if (parent[u] > parent[v])
            swap(u, v);
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 30 / 30
• Subtask 5: 35 / 35