Submission #313914

#	Time	Username	Problem	Language	Result	Execution time	Memory
313914		srvlt	Stations (IOI20_stations)	C++14	0 / 100	970 ms	1024 KiB

stations

#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define SZ(x) (int)(x).size()
#define all(x) begin(x), end(x)

const int n0 = 1003;
int T, d[n0];
vector <int> g[n0], ind;
void dfs(int v, int p) {
	if (!d[v]) ind[v] = T++;
	for (int to : g[v]) {
		if (to == p) continue;
		d[to] = d[v] ^ 1;
		dfs(to, v);
	}
	if (d[v]) ind[v] = T++;
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	T = 0, memset(& d, 0, sizeof(d));
	ind = vector <int>(n);
	for (int i = 0; i < n; i++) g[i].clear();
	for (int i = 0; i < SZ(u); i++)
		g[u[i]].pb(v[i]), g[v[i]].pb(u[i]);
	dfs(0, 0);
	return ind;
}

int find_next_station(int s, int t, vector<int> c) {
	for (int i = 0; i < SZ(c) - 1; i++)
		if (t >= min(s, c[i]) && t <= max(s, c[i]))
			return c[i];
	return c.back();
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61