Submission #614012

#	Time	Username	Problem	Language	Result	Execution time	Memory
614012		Dan4Life	Stations (IOI20_stations)	C++17	0 / 100	1 ms	324 KiB

stations

#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);
}
 
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];
	if(s<t) return c[1];
	return c[0];
}

Compilation message (stderr)

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:25:1: warning: control reaches end of non-void function [-Wreturn-type]
   25 | }
      | ^

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