Submission #1183750

#	Time	Username	Problem	Language	Result	Execution time	Memory
1183750		gyg	Thousands Islands (IOI22_islands)	C++20	5 / 100	82 ms	16816 KiB

islands

#include "islands.h"
#include <bits/stdc++.h>
using namespace std;
#define arr array
#define vec vector 
#define var variant
#define pii pair<int, int>
#define fir first 
#define sec second
const int N = 1e5 + 5;

int n, m;
arr<vec<pii>, N> adj;

var<bool, vec<int>> find_journey(int _n, int _m, vec<int> _u, vec<int> _v) {
    map<pii, int> id;

    n = _n, m = _m;
    for (int i = 0; i < m; i++) {
        int u = _u[i] + 1, v = _v[i] + 1;
        adj[u].push_back({v, i});
    
        id[{u, v}] = i;
    }

    if (n <= 2) return false;
    int a = id[{1, 2}], b = id[{2, 1}], c = id[{1, 3}], d = id[{3, 1}];
    vec<int> ans = {a, b, c, d, b, a, d, c};
    return ans;
}

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