Submission #436119

#	Time	Username	Problem	Language	Result	Execution time	Memory
436119		HediChehaidar	Fun Tour (APIO20_fun)	C++17	26 / 100	18 ms	2552 KiB

fun

/*
ID: hedichehaidar
TASK: photo
LANG: C++11
*/
#include<bits/stdc++.h>
#include "fun.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 = INF + 7;
const double EPS = 0.000000001; // 1 e -9
const ll inf = (ll)1e18;

bool vis[505];
int dist[505][505];
int n;
/*int hoursRequired(int i , int j){
    cout << i << " " << j << endl;
    int x; cin>>x;
    return x;
}*/
vi createFunTour(int N , int Q){
    n = N;
    for(int i = 0 ; i < n ; i++){
        for(int j = i + 1 ; j < n ; j++){
            dist[i][j] = dist[j][i] = hoursRequired(i , j);
        }
    }
    int mx = 1;
    for(int i = 2 ; i < n ; i++){
        if(dist[0][i] > dist[0][mx]) mx = i;
    }
    int cur = 0;
    for(int i = 0 ; i < n ; i++){
        if(dist[mx][i] > dist[mx][cur]) cur = i;
    }
    vis[cur] = true;
    vi res;
    res.pb(cur);
    int nb = 1;
    while(nb < n){
        int nxt = cur;
      //  cout << cur << endl;
        for(int i = 0 ; i < n ; i++){
           // cout << vis[i] << " " << dist[cur][i] << "\n";
            if(dist[cur][i] > dist[cur][nxt] && !vis[i]) {
                nxt = i;
            }
        }
        vis[nxt] = true;
        res.pb(nxt);
        cur = nxt;
        nb++;
    }
    return res;
}
/*int main() {
    //ifstream fin ("race.in");
    //ofstream fout ("race.out");
    ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int N; cin>>N;
    for(auto c : createFunTour(N , 400*1000)) cout << c  << " " ;
    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
    Read the statement CAREFULLY !!
    Make a GREADY APPROACH !!!! (start from highest / lowest)
    Make your own TESTS !!
    Be careful from CORNER CASES !
*/

• Subtask 1: 10 / 10
• Subtask 2: 16 / 16
• Subtask 3: 0 / 21
• Subtask 4: 0 / 19
• Subtask 5: 0 / 34