Submission #1233995

#	Time	Username	Problem	Language	Result	Execution time	Memory
1233995		trimkus	Thousands Islands (IOI22_islands)	C++20	3.50 / 100	19 ms	3396 KiB

islands

#include "islands.h"

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

std::variant<bool, std::vector<int>> find_journey(
    int N, int M, std::vector<int> U, std::vector<int> V) {
    vector<int> deg(N);
    int cn1 = -1, cn2 = -1, cn3 = -1;
    for (int i = 0; i < M; ++i) {
      deg[U[i]] += 1;
      if (U[i] == 0 && cn1 == -1) cn1 = i;
      else if (U[i] == 0 && cn2 == -1) cn2 = i;
      else if (U[1] == 1 && cn3 == -1) cn3 = i;
    }
    if (deg[0] >= 2 && deg[1] >= 1) {
      return vector<int>({cn1, cn3, cn2, cn1, cn3, cn2});
    }
    return false;
}

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