Submission #871330

#	Time	Username	Problem	Language	Result	Execution time	Memory
871330		andrei_boaca	Stations (IOI20_stations)	C++17	8 / 100	587 ms	860 KiB

stations

#include "stations.h"
#include <bits/stdc++.h>
#include <vector>
//#include "stub.cpp"
using namespace std;
vector<int> muchii[1005];
bool use[1005];
int n,k;
vector<int> ord;
void dfs(int nod)
{
    use[nod]=1;
    ord.push_back(nod);
    for(int i:muchii[nod])
        if(!use[i])
            dfs(i);
}
std::vector<int> label(int N, int K, std::vector<int> u, std::vector<int> v)
{
    n=N;
    k=K;
    vector<int> L;
    L.resize(n);
    ord.clear();
    for(int i=0;i<n;i++)
    {
        use[i]=0;
        muchii[i].clear();
    }
    for(int i=0;i<u.size();i++)
    {
        int a=u[i];
        int b=v[i];
        muchii[a].push_back(b);
        muchii[b].push_back(a);
    }
    for(int i=0;i<n;i++)
        L[i]=i;
    return L;
}

int find_next_station(int s, int t, std::vector<int> c)
{
    if(s<t)
    {
        while(true)
        {
            for(int j:c)
                if(j==t)
                    return j;
            if(t==0)
                break;
            t=(t-1)/2;
        }
    }
    return (s-1)/2;
}

Compilation message (stderr)

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:30:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(int i=0;i<u.size();i++)
      |                 ~^~~~~~~~~

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