Submission #432627

#	Time	Username	Problem	Language	Result	Execution time	Memory
432627		saleh	Stations (IOI20_stations)	C++17	5 / 100	946 ms	584 KiB

stations

#include "stations.h"
#include <bits/stdc++.h>


using namespace std;

const int MAXN = 1000 + 23;

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

void dfs(int v, int p = -1) {
	labels[v] = cnt++;
	for (auto i : g[v]) if (i != p) dfs(i, v);
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
//	cout << "learn" << endl;
	for (int i = 0; i < n; i++) g[i].clear();
	labels.clear();
	cnt = 0;
	for (int i = 0; i < n; i++) labels.push_back(0);
	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) {
		dfs(i);
		break;
	}
//	assert(labels.size() == n);
	return labels;
}

int find_next_station(int s, int t, vector<int> c) {
	if (s < t) return s + 1;
	return s - 1;
}
/*
int main() {
	for (auto i : label(3, 8, {0, 1}, {1, 2})) cout << i << endl;
	return 0;
}*/

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