제출 #1149580

#제출 시각아이디문제언어결과실행 시간메모리
1149580byunjaewoo수천개의 섬 (IOI22_islands)C++20
1.75 / 100
19 ms3144 KiB
#include "islands.h"
#include <bits/stdc++.h>
#include <variant>
using namespace std;

variant<bool, vector<int>> find_journey(int N, int M, vector<int> U, vector<int> V) {
  if(N<3) return false;
  int a=0, b=0, c=0, d=0;
  for(int i=0; i<M; i++) {
    if(U[i]==0 && V[i]==1) a=i;
    else if(U[i]==0 && V[i]==2) b=i;
    else if(U[i]==1 && V[i]==0) c=i;
    else if(U[i]==2 && V[i]==0) d=i;
  }
  vector<int> ret;
  for(int i=0; i<2; i++) ret.push_back(a), ret.push_back(c), ret.push_back(b), ret.push_back(d);
  return ret;
}
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