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Submission #1073722

# Submission time Handle Problem Language Result Execution time Memory
1073722 2024-08-24T19:19:23 Z allin27x Stations (IOI20_stations) C++17
0 / 100
 1 ms 344 KB 
#include <bits/stdc++.h>
using namespace std;
#include "stations.h"
#include <vector>

const int N = 1001;
vector<int> adj[N];
int tin[N];
int tout[N];
int tp = 0;

void dfs(int i, int p) {
	tin[i] = tp++;
	for (int c: adj[i]) {
		if (c == p) continue;
		dfs(c,i);
	}
	tout[i] = tp;
}

std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	for (int i=0; i<n; i++) adj[i].clear();
	std::vector<int> labels(n);
	for (int i=0; i<n-1; i++) {
		adj[u[i]].push_back(v[i]);
		adj[v[i]].push_back(u[i]);
	}
	tp = 0;
	dfs(0,0);
	for (int i=0; i<n; i++) labels[i] = 1000*tin[i] + tout[i];
	for (int i=0; i<n; i++) cout<<tin[i]<<' '<<tout[i]<<'\n';
	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
	int s_in = s/1000; int s_out = s%1000;
	int t_in = t/1000; int t_out = t%1000;
	if (s_in <= t_in && t_out <= s_out) {
		// t is below s
		for (int x: c) {
			int x_in = x/1000; int x_out = x%1000;
			if (x_in <= t_in && t_out <= x_out) return x;
		}
	} else {
		for (int x: c) {
			if (x/1000 < s_in) return x;
		}
	}
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:49:1: warning: control reaches end of non-void function [-Wreturn-type]
   49 | }
      | ^

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -