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Submission #432432

# Submission time Handle Problem Language Result Execution time Memory
432432 2021-06-18T09:42:22 Z milleniumEeee Stations (IOI20_stations) C++17
0 / 100
 923 ms 656 KB 
#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define pb push_back
 
vector<int> labels;
vector<vector<int>> graph;
 
void dfs(int n,int p,  int curlabel){
	labels[n] = curlabel;
	for(int adj : graph[n])
	{
		if(adj != p)
			dfs(adj, n, curlabel + 1);
	}
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	vector<int> cnt(n);
	labels.assign(n, 0);
	graph.assign( n, vector<int>());
	for (int i = 0; i < n - 1; i++) {
		//cout << u[i]<<", "<<v[i]<<endl;
		cnt[u[i]]++;
		cnt[v[i]]++;
		graph[u[i]].pb(v[i]);
		graph[v[i]].pb(u[i]);
	}
	
	int root = 0;
	for(int i=0; i<n; i++)
		if(cnt[i] >2){
			root = i;
			break;
		}
		
	labels[root] = 0;
	int counter = 0;
	for(int branch : graph[root]){
		dfs(branch, root,counter * 1000 +1);
		counter++;
	}
	
	
	return labels;
}
 
int find_next_station(int s, int t, vector<int> c) {
	int startbranch = s/1000;
	int endbranch = t/1000;
	if(s == 0){
		return t;
	}
	
	if(startbranch == endbranch){
		if(s < t)
			return s + 1;
		
			
	}
	
	if( (s - 1) % 1000 == 0)
			return 0;
		return s -1;
}
 
 
/************/

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 416 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=1, label=1005
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 292 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=3, label=1001
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 515 ms 656 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 923 ms 400 KB Output is correct
2 Incorrect 672 ms 400 KB Wrong query response.
3 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Incorrect 569 ms 604 KB Wrong query response.
2 Halted 0 ms 0 KB -