제출 #881896

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
881896	2023-12-02 08:07:43	MisterReaper	Sirni (COCI17_sirni)	C++17	140 / 140	4351 ms	396940 KiB

sirni

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#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
const int MAX = 2E7;
const int MAXN = 1E5 + 5;
int par[MAXN];
struct DSU {
    int n;
    DSU(int n) : n(n) {
        iota(par, par + n, 0);
    }
    int get(int a) {
        return par[a] = (par[a] == a ? a : get(par[a]));
    }
    bool same(int a, int b) {
        return get(a) == get(b);
    }
    bool unite(int a, int b) {
        if(same(a, b)) {
            return false;
        }
        a = get(a), b = get(b);
        par[b] = a;
        return true;
 
 
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