Submission #462524

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
462524	2021-08-10T17:08:30 Z	wind_reaper	Stations (IOI20_stations)	C++17	Compilation error	0 ms	0 KB

stations

#include "stations.h"
#include <bits/stdc++.h>

using namespace std;

vector<int> g[1000], tin;
int timer;

void dfs(int u, int p, int d){
	if(!d) tin[u] = timer++;
	for(int v : g[u]) if(v != p){
		dfs(v, u, d ^ 1);
	}
	if(d) tin[u] = timer++;
}

vector<int> label(int n, int k, vector<int> u, vector<int> v){
	for(int i = 0; i < n - 1; i++){
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}
	tin.resize(n);
	
	dfs(tin, 0, -1, 0);

	return tin;
}

int find_next_station(int s, int t, vector<int> c){
	int m = c.size(), i;
	if(s < c[0]){
		for(i = 0; i < m - 1; i++)
			if(i == 0 ? s : c[i-1] < t && c[i] >= t)
				break;
	}
	else{
		for(i = m - 1; i > 0; --i)
			if(i + 1 == m ? s : c[i+1] > t && c[i] <= t)
				break;
	}

	return c[i];
}

Compilation message

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:24:6: error: cannot convert 'std::vector<int>' to 'int'
   24 |  dfs(tin, 0, -1, 0);
      |      ^~~
      |      |
      |      std::vector<int>
stations.cpp:9:14: note:   initializing argument 1 of 'void dfs(int, int, int)'
    9 | void dfs(int u, int p, int d){
      |          ~~~~^