Submission #576647

#TimeUsernameProblemLanguageResultExecution timeMemory
576647radalFun Tour (APIO20_fun)C++17
26 / 100
95 ms18252 KiB
#include "fun.h"

#include <bits/stdc++.h>
#pragma GCC target("sse,sse2,sse4,avx2")
#pragma GCC optimize("unroll-loops,O2")
#define rep(i,l,r) for (int i = l; i < r; i++)
#define repr(i,r,l) for (int i = r; i >= l; i--)
#define X first
#define Y second
#define all(x) (x).begin() , (x).end()
#define pb push_back
#define endl '\n'
#define debug(x) cerr << #x << " : " << x << endl;
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pll;
constexpr int N = 2e5+20,mod = 998244353,inf = 1e9+10;
inline int mkay(int a,int b){
    if (a+b >= mod) return a+b-mod;
//    if (a+b < 0) return a+b+mod;
    return a+b;
}
vector<int> adj[N];
int n,h[N],vis[N];
void dfs(int v,int p){
    for (int u : adj[v]){
        if (u != p){
            h[u] = h[v]+1;
            dfs(u,v);
        }
    }
}
vector<int> createFunTour(int N, int Q){
    n = N;
    rep(i,0,n){
        rep(j,i+1,n)
            if (hoursRequired(i,j) == 1){
                adj[i].pb(j);
                adj[j].pb(i);
            }
    }
    vector<int> ans;
    ans.resize(n);
    int cur = 1;
    rep(i,0,n){
        h[cur] = 0;
        dfs(cur,-1);
        int mx = 0,ind = -1;
        rep(j,0,n){
            if (!vis[j] && h[j] > mx){
                ind = j;
                mx = h[j];
            }
        }
        vis[ind] = 1;
        ans[i] = ind;
        cur = ind;
    }
    return ans;
}
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