Submission #469005

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
469005	2021-08-30 11:26:57	gratus907	One-Way Streets (CEOI17_oneway)	C++17	100 / 100	406 ms	44140 KiB

oneway

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#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#define ll long long
#define eps 1e-7
#define all(x) ((x).begin()),((x).end())
#define usecppio ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
#define int ll
using pii = pair<int, int>;
const int mod = 1000000007;
#define V 101010
struct DSU {
    int par[V], sz[V];
    DSU(){init(V);}
    void init(int n) {
        for (int i = 0; i<n; i++)
            par[i] = i, sz[i] = 1;
    }
    int find(int x) {
        return x == par[x] ? x : (par[x] = find(par[x]));
    }
    void unite(int x, int y){
        int u = find(x), v = find(y);
        if (u==v) return;
        par[u] = par[v];
    }
};
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40