Submission #605114

#	Time	Username	Problem	Language	Result	Execution time	Memory
605114		HediChehaidar	Rail (IOI14_rail)	C++17	30 / 100	330 ms	99236 KiB

rail

#include<bits/stdc++.h>
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef double db;
ll gcd(ll a , ll b) {return b ? gcd(b , a % b) : a ;} // greatest common divisor (PGCD)
ll lcm(ll a , ll b) {return (a * b) / gcd(a , b);} // least common multiple (PPCM)
#define ss second
#define ff first
#define all(x) (x).begin() , (x).end()
#define pb push_back
#define vi vector<int>
#define vii vector<pair<int,int>>
#define vl vector<ll>
#define vll vector<pair<ll,ll>>
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pdd  pair<double,double>
#define vdd  vector<pdd>
#define dte  tuple<double , double , double>
using namespace std;
const int INF = 1000*1000*1000; // 1 e 9
const int MOD = 1e9 + 7;//998244353 ;
const double EPS = 0.000000001; // 1 e -9
const ll inf = (ll)2e18;
#include"rail.h"
//int getDistance(int i, int j);

int dist[5050][5050];
void findLocation(int n, int first, int location[], int stype[]){
    location[0] = first;
    stype[0]= 1;
    if(n == 1) return;
    int mn = INF , id = 1;
    for(int i = 0 ; i < n ; i++){
        for(int j = i + 1 ; j < n ; j++){
            dist[i][j] = dist[j][i] = getDistance(i , j);
        }
    }
    for(int i = 1 ; i < n ; i++) {
        if(dist[0][i] < mn){
            mn = dist[i][0]; id = i;
        }
    }
    stype[id] = 2; location[id] = first + dist[0][id];
    for(int i = 1 ; i < n ; i++){
        if(i == id) continue;
        if(dist[0][i] < dist[id][i]){
            stype[i] = 2; location[i] = first + dist[0][i];
        }
        else{
            stype[i] = 1; location[i] = first - (dist[i][id] - dist[0][id]);
        }
    }
}
/*int main(){
    //ifstream fin ("testing.txt");
    //ofstream fout ("output.txt");
    ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

    return 0;
}
*/
/*
    Think of : BS / DFS / BFS / SSSP / SCC / MSP / MAX FLOW / TOPSORT / LCA / MATRIX / DP(bitmask) / 2 POINTERS / SEG TREE / MATH / UN FIND / MO / HLD
    Read the statement CAREFULLY !!
    Make a GREADY APPROACH !!!! (start from highest / lowest)
    Make your own TESTS !!
    Be careful from CORNER CASES !
*/

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