oj.uz

Submission #430709

# Submission time Handle Problem Language Result Execution time Memory
430709 2021-06-17T01:47:33 Z JUANDI321 Stations (IOI20_stations) C++17
0 / 100
 910 ms 56212 KB 
#include "stations.h"
#include <vector>
#include <iostream>

using namespace std;
vector<vector<int>> g(1e6+10);
vector<int> l(1e6 +10);
bool ch[1000010];

void dfs(int node, int i)
{
	if(ch[node])return;
	//cout<<"holis"<<endl;
	ch[node]=true;
	l[i] = node;
	//cout<<node<<endl;
	for(auto y : g[node])
	{
		if(!ch[y])
		{
			dfs(y, i+1);
		}
	}
}
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++)
	{
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}
	int spn;
	for(int i = 0; i < n; i++)
	{
		if(g[i].size() == 1)
		{
			spn = i;
			break;
		}
	}
	dfs(spn, 0);//cout<<"hola"<<endl;
	for (int i = 0; i < n; i++) {
		labels[l[i]] = i;
	//	cout<<"l[i] "<<l[i]<<" i "<<i<<endl;
	}
	return labels;
}

int find_next_station(int s, int t, vector<int> c) 
{
	if(t>s)return s+1;
	return s-1;
}

Compilation message

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:12:12: warning: 'spn' may be used uninitialized in this function [-Wmaybe-uninitialized]
   12 |  if(ch[node])return;
      |     ~~~~~~~^
stations.cpp:33:6: note: 'spn' was declared here
   33 |  int spn;
      |      ^~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 48 ms 56076 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 45 ms 56092 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 48 ms 56212 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 910 ms 55184 KB Output is correct
2 Incorrect 619 ms 55340 KB Wrong query response.
3 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Runtime error 46 ms 56124 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -