Submission #308561

#	Time	Username	Problem	Language	Result	Execution time	Memory
308561		Peacher29	Stations (IOI20_stations)	C++14	0 / 100	1087 ms	984 KiB

stations

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

using namespace std;

class pont{
public:
	vector<int> v;
	int be, ki;
	bool volt = 0;
	void dfs();
};

vector<pont> p;

int dd = -1;

void pont::dfs(){
	if(!volt){
		volt=1;
		be=++dd;
		for(int i : v){
			p[i].dfs();
		}
		ki=++dd;
	}
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	dd=-1;
	p.clear();
	p.resize(n);
	for(int i=0;i<n-1;i++){
		p[u[i]].v.push_back(v[i]);
		p[v[i]].v.push_back(u[i]);
	}
	p[0].dfs();
	vector<int> er(n);
	for(int i=0;i<n;i++){
		er[i] = p[i].be*2000+p[i].ki;
	}
	return er;
}

bool contains(int mi, int mit){
	return mi/2000 <= mit/2000 && mit%2000 <= mi%2000;
}

int find_next_station(int s, int t, vector<int> c) {
	if(contains(s,t)){
		for(int i : c){
			if(contains(i,t)){
				return i;
			}
		}
		exit(255);
	} else {
		sort(c.begin(),c.end());
		return c[0];
	}
}

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