Submission #837454

#	Time	Username	Problem	Language	Result	Execution time	Memory
837454		fatemetmhr	Thousands Islands (IOI22_islands)	C++17	5 / 100	26 ms	5172 KiB

islands

// Be name khoda //


#include "islands.h"
#include <bits/stdc++.h>

using namespace std;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

#define debug(x) cerr << "(" << (#x) << "): " << (x) << endl;
#define all(x)   x.begin(), x.end()
#define pb       push_back
#define mp       make_pair
#define fi       first
#define se       second

typedef long long ll;

const int mod   = 1e9 + 9;
const int maxn5 = 1e5 + 10;

std::variant<bool, std::vector<int>> find_journey(
    int n, int m, std::vector<int> u, std::vector<int> v) {
    if(n == 2){
        vector <int> cnt[2], ret;
        for(int i = 0; i < m; i++){
            cnt[u[i]].pb(i);

        }
        if(int(cnt[0].size()) < 2 || int(cnt[1].size()) < 1)
            return false;
        int a = cnt[0][0], b = cnt[0][1], c = cnt[1][0];
        return vector <int> ({a, c, b, a, c, b});
    }
    return false;
}

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