Submission #1007092

#	Time	Username	Problem	Language	Result	Execution time	Memory
1007092		edogawa_something	Longest Trip (IOI23_longesttrip)	C++17	30 / 100	12 ms	600 KiB

longesttrip

#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vii;
typedef pair<ll,ll> pii;
#define pb push_back
#define F first 
#define S second 
#define all(v) v.begin(),v.end()
const int M=1010;
const ll inf=1e18;
std::vector<int> longest_trip(int N, int D)
{
    vector<int>v1,v2;
    for(int i=0;i<N;i++){
        if(v1.empty()){
        v1.pb(i);
        continue;
        }
        if(are_connected({i},{v1.back()})){
            v1.pb(i);
            continue;
        }
        if(v2.empty()){
            v2.pb(i);
            continue;
        }
        if(are_connected({i},{v2.back()})){
            v2.pb(i);
            continue;
        }
        reverse(all(v2));
        for(auto it:v2)
        v1.pb(it);
        v2.clear();
        v2.pb(i);
    }
    if(v1.size()>v2.size())
    swap(v1,v2);
    return v2;
}

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