Submission #582012

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
582012	2022-06-23 09:28:09	KoD	Stranded Far From Home (BOI22_island)	C++17	100 / 100	252 ms	31276 KiB

island

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#include <bits/stdc++.h>
using std::vector;
using std::array;
using std::pair;
using std::tuple;
using ll = long long;
template <class F> struct fixed : private F {
    explicit fixed(F&& f) : F(std::forward<F>(f)) {}
    template <class... Args> decltype(auto) operator()(Args&&... args) const {
        return F::operator()(*this, std::forward<Args>(args)...);
    }
};
template <class T>
constexpr T infty = std::numeric_limits<T>::max() / 2;
struct UnionFind {
    vector<int> par;
    explicit UnionFind(const int n) : par(n, -1) {}
    int find(int u) {
        return par[u] < 0 ? u : par[u] = find(par[u]);
    }
    pair<int, bool> merge(int u, int v) {
        u = find(u);
        v = find(v);
        if (u == v) {
            return {u, false};
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 30 / 30
• Subtask 5: 35 / 35