Submission #305335

#	Time	Username	Problem	Language	Result	Execution time	Memory
305335		daniel920712	Stations (IOI20_stations)	C++14	0 / 100	911 ms	888 KiB

stations

#include "stations.h"
#include <vector>
using namespace std;
vector < int > Next[1005];
int con[1005]={0};
int ans[1005]={0};
bool use[1005]={0};

void F(int here,int con)
{
    ans[here]=con;
    use[here]=1;
    for(auto i:Next[here])
    {
        if(!use[i]) F(i,con+1);
    }
}

vector<int> label(int n, int k, vector<int> u, vector<int> v)
{
    vector<int> labels;
    int i;
	for(i=0;i<n;i++) labels.push_back(0);
	for(int i=0;i<n-1;i++)
    {
        con[u[i]]++;
        con[v[i]]++;
        Next[u[i]].push_back(v[i]);
        Next[v[i]].push_back(u[i]);
    }
	for(i=0;i<n;i++)
    {
        if(con[i]==1)
        {
            F(i,0);
            break;
        }
    }
    for(i=0;i<n;i++) labels[i]=ans[i];
	return labels;
}

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

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