제출 #1149585

#제출 시각아이디문제언어결과실행 시간메모리
1149585byunjaewoo수천개의 섬 (IOI22_islands)C++20
0 / 100
18 ms3148 KiB
#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) { int a=-1, b=-1, c=-1, d=-1; for(int i=0; i<M; i+=2) { if(U[i]==0) { if(a<0) a=i, c=i+1; else if(b<0 && V[a]!=V[i]) b=i, d=i+1; } if(V[i]==0) { if(a<0) a=i+1, c=i; else if(b<0 && V[a]!=V[i+1]) b=i+1, d=i; } } if(b<0) return false; vector<int> ret; ret.push_back(a), ret.push_back(c), ret.push_back(b), ret.push_back(d); ret.push_back(c), ret.push_back(a), ret.push_back(d), ret.push_back(b); return ret; }
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