Submission #853458

#	Time	Username	Problem	Language	Result	Execution time	Memory
853458		nnin	Stations (IOI20_stations)	C++14	8 / 100	620 ms	1068 KiB

stations

#include "stations.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;

vector<int> adj[1005], tmp;

void dfs(int u, int p, int ct) {
    tmp[u] = ct;
    for(int n:adj[u]) {
        if(n==p) continue;
        dfs(n, u, ct+1);
    }
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	vector<int> labels(n);
	for(int i=0;i<n;i++) labels[i] = i;
	/*tmp.clear();
	tmp.resize(n);
	for(int i=0;i<n;i++) adj[i].clear();
	for(int i=0;i<n-1;i++) {
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
	}
	for(int i=0;i<n;i++) {
        if(adj[i].size()==1) {
            dfs(i, i, 0);
            break;
        }
	}
	for(int i=0;i<n;i++) labels[i] = tmp[i];*/
	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
	/*if(t>s) return s+1;
    return s-1;*/
    while((t-1)/2>s) {
        t = (t-1)/2;
    }
    if((t-1)/2==s) return t;
    return (s-1)/2;
}

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