Submission #1009878

#	Time	Username	Problem	Language	Result	Execution time	Memory
1009878		dimashhh	Stations (IOI20_stations)	C++17	0 / 100	600 ms	10184 KiB

stations

#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 12;
vector<int> g[N],ord;
bool vis[N];
void dfs(int v,int pr = -1){
    for(int to:g[v]){
        if(to != pr){
            dfs(to,v);
        }
    }
    ord.push_back(v);
}
vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v){
    vector<int> lab(n);
    for(int i = 0;i < n;i++){
        lab[i] = i;
    }
    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((int)g[i].size() == 1){
            // dfs(i);
            break;
        }
    }
    // for(int i = 0;i < (int)lab.size();i++){
    //     lab[ord[i]] = i;
    // }
    return lab;
}
int find_next_station(int s, int t, std::vector<int> c){
    if(s < t)return s + 1;
    return s - 1;
}

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