Submission #1024353

#	Time	Username	Problem	Language	Result	Execution time	Memory
1024353		Ahmed_Solyman	Stations (IOI20_stations)	C++14	0 / 100	615 ms	776 KiB

stations

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

vector<vector<int>>adj;
vector<int>ret;
void dfs(int node,int mark=0,int par=-1){
    if(mark>1000){
        return;
    }
    ret[node]=mark;
    for(auto i:adj[node]){
        if(i!=par)dfs(i,mark+1,node);
    }
}
vector<int> label(int n, int k, vector<int> u, vector<int> v){
    ret=vector<int>(n);
    adj=vector<vector<int>>(n);
    for(int i=0;i<n-1;i++){
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }
    int root=0;
    for(int i=0;i<n;i++){
        if(adj[i].size()==1)root=i;
    }
    dfs(root,root);
    return ret;
}
int find_next_station(int s, int t,vector<int> c){
    if (c.size() == 1)
		return c[0];
	for (int l : c)
		if (l == t)
			return t;
	if (t > s)
		return c.back();
	return c[0];
}

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