Submission #321675

#	Time	Username	Problem	Language	Result	Execution time	Memory
321675		Gilgamesh	Stations (IOI20_stations)	C++17	Compilation error	0 ms	0 KiB

stations

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

const int mxN = 1'001;

vector<int> adj[mxN];
int timer;
int temp[mxN];

void dfs(int v, int p){
	temp[timer++] = v;
	for(int i : adj[v]) {
		if(i == p) continue;
		dfs(i, v);
	}
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	vector<int> labels(n);
	for(int i = 0; i < n - 1; ++i){
		adj[u[i]].emplace_back(adj[v[i]]);
		adj[v[i]].emplace_back(adj[u[i]]);
	}
	timer = 0;
	dfs(0, -1);
	for(int i = 0; i < n; ++i){
		labels[i] = temp[i];
	}
	return labels;
}

int find_next_station(int s, int t, vector<int> c) {
	sort(c.begin(), c.end());
	if(t < s) {
		return c[0];
	} else {
		int ans = 0;
		for(int i : c){
			if(t < i) break;
			ans = i;
		}
		return ans;
	}
}

//int main(){}

Compilation message (stderr)

In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/c++allocator.h:33,
                 from /usr/include/c++/9/bits/allocator.h:46,
                 from /usr/include/c++/9/vector:64,
                 from stations.h:1,
                 from stations.cpp:1:
/usr/include/c++/9/ext/new_allocator.h: In instantiation of 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = int; _Args = {std::vector<int, std::allocator<int> >&}; _Tp = int]':
/usr/include/c++/9/bits/alloc_traits.h:482:2:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = int; _Args = {std::vector<int, std::allocator<int> >&}; _Tp = int; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<int>]'
/usr/include/c++/9/bits/vector.tcc:115:30:   required from 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {std::vector<int, std::allocator<int> >&}; _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::reference = int&]'
stations.cpp:22:35:   required from here
/usr/include/c++/9/ext/new_allocator.h:145:20: error: cannot convert 'std::vector<int>' to 'int' in initialization
  145 |  noexcept(noexcept(::new((void *)__p)
      |                    ^~~~~~~~~~~~~~~~~~
  146 |        _Up(std::forward<_Args>(__args)...)))
      |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~