Submission #1059563

#	Time	Username	Problem	Language	Result	Execution time	Memory
1059563		shiomusubi496	Thousands Islands (IOI22_islands)	C++17	6.75 / 100	21 ms	6488 KiB

islands

#include "islands.h"

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
#define rep2(i, a, b) for (int i = (int)(a); i < (int)(b); ++i)
#define rrep(i, n) for (int i = (int)(n) - 1; i >= 0; --i)
#define rrep2(i, a, b) for (int i = (int)(b) - 1; i >= (int)(a); --i)

#define all(v) begin(v), end(v)
#define rall(v) rbegin(v), rend(v)

using namespace std;

using ll = long long;

template<class T, class U> bool chmin(T& a, const U& b) { return a > b ? a = b, true : false; }
template<class T, class U> bool chmax(T& a, const U& b) { return a < b ? a = b, true : false; }

struct edge {
    int to, idx;
};

using Graph = vector<vector<edge>>;

std::variant<bool, std::vector<int>> find_journey(int N, int M, std::vector<int> U, std::vector<int> V) {
    Graph G(N);
    rep (i, M) {
        G[U[i]].push_back({V[i], i});
    }
    if (G[0].size() >= 2 && G[1].size() >= 1) {
        return vector<int>{G[0][0].idx, G[1][0].idx, G[0][1].idx, G[0][0].idx, G[1][0].idx, G[0][1].idx};
    }
    else {
        return false;
    }
}

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