Submission #946979

#	Time	Username	Problem	Language	Result	Execution time	Memory
946979		kim	가장 긴 여행 (IOI23_longesttrip)	C++17	0 / 100	3 ms	600 KiB

longesttrip

#include "longesttrip.h"
#include<bits/stdc++.h>
using namespace std;
#define eb emplace_back

#define ask are_connected

vector<int> adj[260];
bitset<260> vis;
vector<int> ans;

void dfs(int u){
    vis[u]=1;
    ans.eb(u);
    for(auto &v:adj[u]){
        if(!vis[v]) dfs(v);
    }
}

std::vector<int> longest_trip(int N, int D)
{
    if(D==1){
        ans.resize(N);
        iota(ans.begin(),ans.end(),0);
        return ans;
    }
    for(int i=0;i<N;++i) adj[i].clear();
    if(D==2){
        for(int i=0;i+1<N;++i){
            if(ask({i},{i+1})) adj[i].eb(i+1), adj[i+1].eb(i);
            else for(int j=0;j<N;++j){
                if(i<=j&&j<=i+1) continue;
                adj[j].eb(i), adj[i].eb(j);
                adj[j].eb(i+1), adj[i+1].eb(j);
            }
        }
        vis.reset();
        dfs(0);
        return ans;
    }
    return{};
}

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