Submission #764271

#	Time	Username	Problem	Language	Result	Execution time	Memory
764271		raysh07	Thousands Islands (IOI22_islands)	C++17	0 / 100	25 ms	3444 KiB

islands

#include "islands.h"
#include <variant>
#include <bits/stdc++.h>
using namespace std;

variant<bool, vector<int>> find_journey(int n, int m, vector<int> u, vector<int> x) {
    vector <pair<int, int>> v;
    for (int i = 0; i < m; i+=2){
        if (u[i] == 0){
            v.push_back({i, i + 1});
        } else if (x[i] == 0){
            v.push_back({i + 1, i});
        }
    }
    
    if (v.size() < 2) return false;
    
    vector <int> ans;
    ans.push_back(v[0].first);
    ans.push_back(v[0].second);
    ans.push_back(v[1].first);
    ans.push_back(v[1].second);
    ans.push_back(v[0].second);
    ans.push_back(v[0].first);
    ans.push_back(v[1].second);
    ans.push_back(v[1].first);
    
    return ans;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45