Submission #1320256

#	Time	Username	Problem	Language	Result	Execution time	Memory
1320256		madamadam3	Thousands Islands (IOI22_islands)	C++20	5 / 100	19 ms	5516 KiB

islands

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

using namespace std;

using vi = vector<int>;

int n, m;
vector<vi> adj;
vi istate;

variant<bool, vi> find_journey(int N, int M, vi U, vi V) {
  n = N; m = M; istate.assign(n, 0); adj.resize(n);
  for (int i = 0; i < m; i++) {
    adj[U[i]].push_back(i);
    adj[V[i]].push_back(i);
  }

  if (n == 2) return false;
  auto find = [&](int u, int v) {
    for (int i = 0; i < m; i++) {
      if (U[i] == u && V[i] == v) return i;
    }

    return -1;
  };

  int a = find(0, 1), b = find(1, 0), c = find(1, 2), d = find(2, 1), e = find(2, 0), f = find(0, 2);
  return vector<int>({a, c, e, f, d, b, e, c, a, b, d, f});
}

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