제출 #1076449

#제출 시각아이디문제언어결과실행 시간메모리
1076449zsombor수천개의 섬 (IOI22_islands)C++17
0 / 100
1 ms424 KiB
#include "islands.h"
#include <bits/stdc++.h>
#include <variant>
using namespace std;

int n, m;
vector<int> u;
vector<int> v;
vector<int> ans;

void solve1() {
    vector<int> a;
    vector<int> b;
    for (int i = 0; i < m; i++) {
        if (!u[i]) a.push_back(i);
        else b.push_back(i);
    }
    if (a.size() < 2 || b.size() < 2) return;
    ans = {a[0], b[0], a[1], b[1], b[0], a[0], b[1], a[1]};
}

variant<bool, vector<int> > find_journey(int N, int M, vector<int> U, vector<int> V) {
    n = N;
    m = M;
    u = U;
    v = V;
    if (n == 2) solve1();
    if (ans.size()) return ans;
    return false;
}
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