Submission #514890

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
514890	2022-01-18 17:24:30	ronnith	Sirni (COCI17_sirni)	C++14	98 / 140	3885 ms	786436 KiB

sirni

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#include <bits/stdc++.h>
#define index ind
using namespace std;
struct DSU {
    int cnt;
    int size;
    vector<int> e;
    DSU (int _) : size (_) {
        e = vector<int> (size, -1);
    }
    int root(int x) {
        return (e[x] < 0 ? x : (e[x] = root(e[x])));
    }
    bool same(int x, int y) {
        return root(x) == root(y);
    }
    void unite(int x, int y) {
        if (same(x, y)) return;
        x = root(x), y = root(y);
        if (-e[x] > -e[y]) {
            swap(x, y);
        }
        e[y] += e[x];
        e[x] = y;
        cnt --;
    }
};
 
 
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