Submission #424125

#	Time	Username	Problem	Language	Result	Execution time	Memory
424125		lakshith_	Stations (IOI20_stations)	C++14	0 / 100	5 ms	756 KiB

stations

#include "stations.h"
#include <bits/stdc++.h>
 
using namespace std;
 
#define what_is(a) cout << #a << " is " << a << "\n"
#define checker(a) cout <"checker reached " << a << "\n"
 
vector<vector<int>> adj(1000,vector<int>());
vector<int> lbl;
 
int m;
 
void dfs(int u,int p,int d){
	lbl[u] = d;
	for(int i=0;i<(int)adj[u].size();i++)
		if(adj[u][i]!=p)
			dfs(adj[u][i],u,d*m+i+1);
}
 
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	lbl =  vector<int>(n);
	for(int i=0;i<n;i++)
		adj[i] = vector<int>();
	for(int i=0;i<n-1;i++){
		adj[u[i]].push_back(v[i]);
		adj[v[i]].push_back(u[i]);
	}
	m=1000;
	//for(int i=0;i<n;i++)
		//m = max(m,(int)adj[i].size());
	dfs(0,0,0);
	return lbl;
}
 
int find_next_station(int s, int t, std::vector<int> c) {
	int a =s,b=t;
	while(a>0){
		a= (a-1)/m;
		if(a==b)break;
	}
	if(a==b)return (s-1)/m;
	a=s,b=t;
	int p=b;
	while(b>0){
		p=b;
		b = (b-1)/m;
		if(a==b)break;
	}
	if(a==b)return p;
	return (s-1)/m;
}

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