제출 #1227218

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1227218		brinton	Thousands Islands (IOI22_islands)	C++20	10 / 100	20 ms	6980 KiB

islands

#include "islands.h"

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

variant<bool, vector<int>> find_journey(int N, int M, vector<int> U, vector<int> V) {
  if(N == 2){
    vector<int> A,B;
    for(int i = 0;i < M;i++){
      if(U[i] == 0) A.push_back(i);
      else B.push_back(i);
    }
    if(A.size() < 2 || B.size() < 1) return false;
    vector<int> ans{A[0],B[0],A[1],A[0],B[0],A[1]};
    return ans;
  }
  vector<vector<int>> id(N,vector<int>(N));
  for(int i = 0;i < M;i++) id[U[i]][V[i]] = i;
  vector<int> ans{id[0][1],id[1][0],id[0][2],id[2][0],
  id[1][0],id[0][1],id[2][0],id[0][2]};
  return ans;
}

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