Submission #102563

#	Time	Username	Problem	Language	Result	Execution time	Memory
102563		Lawliet	Rail (IOI14_rail)	C++14	0 / 100	3032 ms	190368 KiB

rail

#include <bits/stdc++.h>
#include "rail.h"

#define MAX 5010
#define ff first
#define ss second
#define mp make_pair

using namespace std;
typedef pair<int,int> pii;

int k, f;

int dist[MAX][MAX];

bool marc[MAX];

vector<pair<int,pii> > erase;

set<pair<int,pii> > s;

set<pair<int,pii> >::iterator it;

void add(int d, int i, int j) { s.insert(mp(d , mp(i , j))); }

void findLocation(int n, int first, int location[], int stype[])
{
    for(int g = 0 ; g < n ; g++)
        for(int h = g + 1 ; h < n ; h++)
            dist[g][h] = dist[h][g] = getDistance(g , h);
            
    for(int g = 1 ; g < n ; g++) add(dist[0][g] , 0 , g);
    
    marc[0] = true;
    stype[0] = 1;
    location[0] = first;
    
    while(!s.empty())
    {
        it = s.begin();
        
        int d = it->ff;
        int i = it->ss.ff;
        int j = it->ss.ss;
        
        if(marc[j])
        {
            s.erase(it);
            continue;
        }
        
        marc[j] = true;
        stype[j] = 3 - stype[i];
        location[j] = location[i] + ((stype[i] == 1) ? (d - 1) : (-d + 1));
        
        for(int h = 0 ; h < n ; h++) if(!marc[h]) add(dist[h][j] , j , h);
    }
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 22
• Subtask 3: 0 / 26
• Subtask 4: 0 / 44