Submission #604546

#	Time	Username	Problem	Language	Result	Execution time	Memory
604546		Tigryonochekk	Stations (IOI20_stations)	C++17	5 / 100	843 ms	716 KiB

stations

#include <iostream>
#include "stations.h"
#include <vector>
#define ll long long
using namespace std;
const int N = 1002;

vector<int> g[N];
vector<int> labels;
int cnt = 0;

void dfs(int v) {
	for (int to : g[v]) {
		if (labels[to] >= 0) continue;
		labels[to] = cnt++;
		dfs(to);
	}
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	labels.resize(n);
	fill(labels.begin(), labels.end(), -1);
	cnt = 0;
	for (int i = 0; i < n; i++) {
		g[i].clear();
	}
	for (int i = 0; i < n - 1; i++) {
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}
	for (int i = 0; i < n; i++) {
		if (g[i].size() == 1) {
			labels[i] = cnt++;
			dfs(i);
		}
	}
	return labels;
}

int find_next_station(int s, int t, vector<int> c) {
	if (c.size() == 1) 
		return c[0];
	if (t > s)
		return c[1];
	else
		return c[0];
}
/*
1 
5 1000 
4 2 
3 1 
0 2 
0 3 
5 
4 0 2 
2 4 4 
3 4 0 
0 1 3 
0 3 3 
*/

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