Submission #813217

#	Time	Username	Problem	Language	Result	Execution time	Memory
813217		Wael	Rail (IOI14_rail)	C++14	Compilation error	0 ms	0 KiB

rail

#include<bits/stdc++.h>
using namespace std;
#include "grader.h"
#define F first
#define S second
typedef int ll;
int const M = 5e3 + 20;
int Dis[M][M] , mn[M] , closer[M] , cur , n;
bool vis[M];
set<ll>TypeC , TypeD;
 
bool cmp(int a , int  b) {
    return (Dis[0][a] < Dis[0][b]);
}
 
void findLocation(int n , int first , int location[], int stype[]) {
 
    int a = 0 , b , MinDis = 1e9;
    location[a] = first;
    stype[a] = 1;
    TypeC.insert(location[a]);
 
    for(int station = 1 ; station < n ; ++station) {
        //Dis[a][station] = getDistance(a , station);
        if(Dis[a][station] < MinDis) {
            b = station;
            MinDis = Dis[a][b];
        }
    }
 
    location[b] = location[a] + Dis[a][b];
    stype[b] = 2;
    TypeD.insert(location[b]);

    MinDis = 1e9;
    for(int i = 0 ; i < n ; ++i) {
        if(i == b) continue;
        if(Dis[b][i] < MinDis) {
            MinDis = Dis[b][i];
            a = i;
        }
    }
    location[a] = location[b] - Dis[a][b];
    stype[a] = 1;
    TypeC.insert(location[a]);
 
    vector<ll>rem;
    for(int station = 1 ; station < n ; ++station) {
        if(station == b || station == a) continue;
        rem.push_back(station);
    }
    
    sort(rem.begin() , rem.end() , cmp);
 
    int LeftMost = a , RightMost = b;
 
    for(auto station : rem) { 
        if(Dis[a][station] < Dis[b][station]) {
            int CurDis = getDistance(RightMost , station);
            int Expect = location[RightMost] - CurDis;
            auto it = TypeD.lower_bound(Expect);
            if(*it - location[a] + *it - Expect == Dis[a][station] && Expect > location[b]) {
                location[station] = Expect;
                stype[station] = 1;
                TypeC.insert(location[station]);
            } else {
                RightMost = station;
                location[RightMost] = location[a] + Dis[a][RightMost];
                stype[RightMost] = 2;
                TypeD.insert(location[RightMost]);
            }
        }
 
        else {
            int CurDis = getDistance(LeftMost , station);
            int Expect = location[LeftMost] + CurDis;
            auto it = TypeC.lower_bound(Expect); --it;
            if(stype[station] == 2) assert(Dis[a][closer[station]] < Dis[a][station]);
            if(location[b] - *it + Expect - *it == Dis[b][station] && Expect < location[a]) {
                location[station] = Expect;
                stype[station] = 2;
                TypeD.insert(location[station]);
            } else {
                if(stype[station] != 1) return;
                LeftMost = station;
                location[LeftMost] = location[b] - Dis[b][LeftMost];
                stype[LeftMost] = 1;
                TypeC.insert(location[LeftMost]);
            }
        }
        
    }
 
    return;
}

Compilation message (stderr)

rail.cpp:3:10: fatal error: grader.h: No such file or directory
    3 | #include "grader.h"
      |          ^~~~~~~~~~
compilation terminated.