# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
614011 | Dan4Life | 기지국 (IOI20_stations) | C++17 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
vector<int> adj[1001], col;
int lab = 0;
void dfs(int s, int p=-1)
{
col[s]=lab++;
for(auto u : adj[s])
if(u!=p) dfs(u, s, col);
}
vector<int> label(int n, int k, vector<int> a, vector<int> b)
{
col.resize(n,0); lab = 0; col.clear();
for(int i = 0; i < n; i++) adj[i].clear();
for (int i = 0; i < n-1; i++) {
adj[a[i]].pb(b[i]);
adj[b[i]].pb(a[i]);
}
for(int i = 0; i < n; i++){
if(adj[i].size()!=1) continue;
dfs(i); return col;
}
}
int find_next_station(int s, int t, vector<int> c)
{
if(c.size()==1)return c[0];
for(auto u : c) if(u==t) return u;
if(s<t) return c[1];
return c[0];
}