Submission #828790

#	Time	Username	Problem	Language	Result	Execution time	Memory
828790		Minindu206	Stations (IOI20_stations)	C++14	0 / 100	3034 ms	2097152 KiB

stations

#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> adj[1005], vals;
int t = 0;
void dfs(int node, int p)
{
	t++;
	for (auto a : adj[node])
	{
		if (a != p)
			dfs(a, node);
	}
	vals[node] = t++;
}
vector<int> label(int n, int k, vector<int> u, vector<int> v)
{
	for (int i = 0; i < n - 1; i++)
	{
		adj[u[i]].push_back(v[i]);
		adj[v[i]].push_back(u[i]);
	}
	vals.resize(n);
	dfs(0, -1);

	// for (int i = 0; i < n; i++)
	// 	cout << vals[i] << "\n";
	// cout << '\n';
	return vals;
}

int find_next_station(int s, int t, vector<int> c)
{
	if (c.size() == 1)
		return c[0];
	if (s < c[0])
	{
		if (s < t && t <= c[0])
			return c[0];
		for (int i = 1; i < c.size() - 1; i++)
		{
			if (c[i - 1] < t && t <= c[i])
				return c[i];
		}
		return c.back();
	}
	if (c.back() <= t && t < s)
		return c.back();
	for (int i = c.size() - 2; i; i--)
	{
		if (c[i] <= t && t < c[i + 1])
			return c[i];
	}
	return c[0];
}

Compilation message (stderr)

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:40:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |   for (int i = 1; i < c.size() - 1; i++)
      |                   ~~^~~~~~~~~~~~~~

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