Submission #96367

#	Time	Username	Problem	Language	Result	Execution time	Memory
96367		someone_aa	Rail (IOI14_rail)	C++17	30 / 100	74 ms	632 KiB

rail

#include <bits/stdc++.h>
#include "rail.h"
#define ll long long
#define pb push_back
#define mp make_pair
#define P pair<int,int>
using namespace std;
const int maxn = 5100;
int dist[maxn];

void findLocation(int N, int first, int location[], int stype[]) {
    location[0] = first;
    stype[0] = 1;
    vector<P>v;
    for(int i=1;i<N;i++) {
        v.pb(mp(getDistance(0, i), i));
        dist[i] = getDistance(0, i);
        //cout<<i<<": "<<dist[i]<<"\n";
    }
    sort(v.begin(), v.end());

    P f = v[0];

    stype[f.second] = 2;
    location[f.second] = first + f.first;

    v.clear();
    for(int i=1;i<N;i++) {
        if(i == f.second) continue;

        int dist2 = getDistance(f.second, i);

        //cout<<i<<": "<<dist[i]<<" "<<dist2<<"\n";

        if(dist[i] == dist2 + dist[f.second]) {
            // on left from first
            location[i] = location[f.second] - dist2;
            stype[i] = 1;

        }
        else {
            location[i] = first + dist[i];
            stype[i] = 2;
        }
    }
}

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