Submission #305697

#	Time	Username	Problem	Language	Result	Execution time	Memory
305697		arthurconmy	Stations (IOI20_stations)	C++14	8 / 100	1178 ms	996 KiB

stations

#ifndef ARTHUR_LOCAL
	#include "stations.h"
#endif

#ifdef ARTHUR_LOCAL
	#include <bits/stdc++.h>
#endif

using namespace std;
using ll = long long;

vector<int> adj[1001];
bool vis[1001];
int curv;
int labellist[1001];

void dfs(int v)
{
	vis[v]=1;
	labellist[v]=curv++;

	for(auto u:adj[v])
	{
		if(!vis[u]) dfs(u);
	}
}

vector<int> label(int n, int k, vector<int> U, vector<int> V) 
{
	vector<int> ans;
	for(int i=0; i<n; i++) ans.push_back(i);
	return ans;
}

int find_next_station(int s, int t, vector<int> C) 
{
	vector<int> level(1001);
	level[0]=1;

	for(int i=0; i<=1000; i++)
	{
		if(2*i + 1 <= 1000) level[2*i + 1] = 1 + level[i];
		if(2*i + 2 <= 1000) level[2*i + 2] = 1 + level[i];

		// if(i<100) cout << i << " " << level[i] << endl;
	}

	if(s > t) return int((s-1)/2);

	int tt=t;
	while(tt > s) tt = int((tt-1)/2);
	if(tt != s) return C[0];

	tt=t;
	while(int((tt-1)/2) != s) tt=int((tt-1)/2);
	return tt;
}

#ifdef ARTHUR_LOCAL
int main()
{
	cout << "ANS: " << find_next_station(0, 6, {1, 2}) << endl; 
}
#endif

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