Submission #408414

#	Time	Username	Problem	Language	Result	Execution time	Memory
408414		muhammad_hokimiyon	Stations (IOI20_stations)	C++14	0 / 100	1035 ms	556 KiB

stations

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

using namespace std;

const int N = 1e3 + 7;

std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	std::vector<int> labels(n);
	vector<int> g[n + 7];
	for(int i = 0; i < n - 1; i++){
        int x = u[i], y = v[i];
        g[x].push_back(y);
        g[y].push_back(x);
	}
	int st = 0;
	for(int i = 1; i < n; i++){
        if((int)g[i].size() < (int)g[st].size()){
            st = i;
        }
	}
	queue<int> q;
	q.push(st);
	vector<int> d(n + 7, 1e9);
	d[st] = 0;
	while(!q.empty()){
        int x = q.front();
        q.pop();
        for(auto y : g[x]){
            if(d[y] == 1e9){
                d[y] = d[x] + 1;
                q.push(y);
            }
        }
	}
	for(int i = 0; i < n; i++){
        labels[i] = d[i];
	}
	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
    for(auto x : c){
        if(s < t && x < s)return x;
        if(s > t && x > s)return x;
    }
    return c[0];
}

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