Submission #1242070

#	Time	Username	Problem	Language	Result	Execution time	Memory
1242070		TsotneSV	Longest Trip (IOI23_longesttrip)	C++20	5 / 100	1083 ms	412 KiB

longesttrip

#pragma GCC optimize("Ofast")
#pragma GCC optimize ("unroll-loops")

#include <bits/stdc++.h>
using namespace std;
/*⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣤⠀⠀⠀⠀⠀⠀⠀⡄⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣤⣿⠛⣿⠀⠀⠀⠀⣤⣿⢻⡇⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣤⣿⡛⠀⣤⣿⣿⣤⣤⣿⣿⣤⢸⡇⠀
⠀⠀⠀⠀⠀⠀⠀⠀⣴⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡇⠀
⠀⠀⠀⠀⠀⠀⠀⣶⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡗⠀
⢠⣼⣿⣿⣿⣿⣤⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷
⢸⣿⣿⡟⠛⠛⢿⣿⣿⣿⣿⣿⣿⣿⣤⣤⣤⣿⣿⣿⣿⣤⣤⣼⣿⣿
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⠛⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡟⠋       
*/
#include "longesttrip.h"
#define fi first
#define se second
#define pb push_back
#define ins insert
#define sz(a) (int)(a.size())
#define all(x) (x).begin(),(x).end()
typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}


//const int mod = 1e9+7;
//const int mod = 998244353;
const int MAXN=2e5+5; 
const ll inf=1e9,INF=1e18; 

vector<int> longest_trip(int N, int D) {

    
    bool vis[N] = {0},g[N][N] = {0}; int deg[N]={0};

    for(int i=0;i<N;i++) {
        for(int j=i+1;j<N;j++) {
            g[i][j] = g[j][i] = are_connected({i},{j});
            if(g[i][j]) deg[i]++,deg[j]++;
        }
    }

    vi ans; int curr = 0; 

    for(int i=0;i<N;i++) {
        if(deg[i] < deg[curr]) curr = i;
    }

    ans.pb(curr);

    while(ans.size() < N) {

        vis[curr] = 1;

        for(int i=0;i<N;i++) {
            if(vis[i]) continue;
            if(g[curr][i]) {
                curr = i;
                ans.pb(curr);
                break;
            }
        }

    } return ans;

}

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 25
• Subtask 4: 0 / 60