Submission #1074106

#	Time	Username	Problem	Language	Result	Execution time	Memory
1074106		Zicrus	Thousands Islands (IOI22_islands)	C++17	6.75 / 100	21 ms	4420 KiB

islands

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

typedef long long ll;

variant<bool, vector<int>> find_journey(int N, int M, vector<int> U, vector<int> V) {
    ll cnt0 = 0, cnt1 = 0;
    for (auto &e : U) (e ? cnt1 : cnt0)++;
    if (cnt0 >= 2 && cnt1 >= 1) {
        vector<int> res;
        for (int i = 0; i < M && res.size() < 2; i++) {
            if (U[i] == 0) {
                res.push_back(i);
            }
        }
        for (int i = 0; i < M && res.size() < 3; i++) {
            if (U[i] == 1) {
                res.insert(++res.begin(), i);
            }
        }
        for (int i = 0; i < 3; i++) res.push_back(res[i]);
        return res;
    }
    return false;
}

#ifdef TEST
#include "grader.cpp"
#endif

• Subtask 1: 5 / 5
• Subtask 2: 1.75 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45