Submission #431387

#	Time	Username	Problem	Language	Result	Execution time	Memory
431387		idk321	Stations (IOI20_stations)	C++17	0 / 100	892 ms	616 KiB

stations

#include "stations.h"
#include <vector>

using namespace std;

const int M = 1000000000;
const int N = 1000;
int in[N];
int out[N];
vector<int> adj[N];
vector<int> labels;

int n, k;

int timer;



void dfs2(int node, int par)
{
    timer++;
    in[node] = timer;

    for (int next : adj[node])
    {
        if (next == par) continue;
        dfs2(next, node);
    }

    out[node] = timer;
}





std::vector<int> label(int n1, int k1, std::vector<int> u, std::vector<int> v) {
    n = n1;
    k = k1;

	labels.assign(n, 0);


    for (int i = 0; i < n; i++) adj[i].clear();
    for (int i = 0; i < u.size(); i++)
    {
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }






	for (int i = 0; i < n; i++) {
		labels[i] = i;
	}
	return labels;
}



int find_next_station(int s, int t, std::vector<int> c) {
    vector<int> path;
    path.push_back(t);
    while (true)
    {
        t /= 2;
        path.push_back(t);
        if (t == 0) break;
    }

    bool contain = false;
    for (int i : path)
    {
        if (i == s) contain = true;
    }

    if (!contain) return s / 2;

    for (int i : path)
    {
        for (int j : c)
        {
            if (j == s / 2) continue;
            if (j == i) return i;
        }
    }

	return c[0];
}

Compilation message (stderr)

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:45:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |     for (int i = 0; i < u.size(); i++)
      |                     ~~^~~~~~~~~~

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