Submission #338464

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
338464	2020-12-23 08:39:28	KoD	Collapse (JOI18_collapse)	C++17	35 / 100	364 ms	23628 KiB

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#include <bits/stdc++.h>
template <class T>
using Vec = std::vector<T>;
struct DSU {
    Vec<int> par;
    int cmp;
    std::stack<std::tuple<int, int, int, int, int>> stack;
    DSU(const int n): par(n, -1), cmp(n) { }
    int find(int x) const {
        while (par[x] >= 0) {
            x = par[x];
        }
        return x;
    }
    int merge(int x, int y) {
        x = find(x);
        y = find(y);
        if (x == y) {
            return 0;
        }
        if (par[x] > par[y]) {
            std::swap(x, y);
        }
        stack.emplace(x, par[x], y, par[y], cmp);
        par[x] += par[y];
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 30 / 30
• Subtask 3: 0 / 30
• Subtask 4: 0 / 35