Submission #934103

#	Time	Username	Problem	Language	Result	Execution time	Memory
934103		efishel	City (JOI17_city)	C++17	18 / 100	336 ms	34088 KiB

Encoder

#include <bits/stdc++.h>
#include "Encoder.h"
using namespace std;
using ll = long long;
using vll = vector <ll>;

static void dfs (ll u, ll par, vector <vll> &adj, vll &codes, ll &timer) {
	codes[u] |= timer;
	timer++;
	for (ll v : adj[u]) {
		if (v == par) continue;
		dfs(v, u, adj, codes, timer);
	}
	codes[u] |= timer<<19;
	timer++;
}

void Encode (int N, int u[], int v[]) {
	vector <vll> adj(N+2, vll(0));
	for (ll i = 0; i < N-1; i++) {
		adj[u[i]].push_back(v[i]);
		adj[v[i]].push_back(u[i]);
	}
	ll cancs=0;
	vll codes(N+2, 0);
	dfs(0, 0, adj, codes, cancs);
	for (int i = 0; i < N; ++i) {
		Code(i, codes[i]);
	}
}

Device

#include <bits/stdc++.h>
#include "Device.h"
using namespace std;
using ll = long long;
using vll = vector <ll>;

void InitDevice() {
	;
}

int Answer (long long code1, long long code2) {
	ll tinu = code1&((1<<19)-1), toutu = code1>>19;
	ll tinv = code2&((1<<19)-1), toutv = code2>>19;
	// cerr << code1 << ' ' << code2 << '\n';
	// cerr << u << ' ' << v << "\n\n";
	if (tinv <= tinu && toutu <= toutv) return 0;
	if (tinu <= tinv && toutv <= toutu) return 1;
	return 2;
}

• Subtask 1: 8 / 8
• Subtask 2: 10 / 92