제출 #1058348

#제출 시각아이디문제언어결과실행 시간메모리
1058348fuad27수천개의 섬 (IOI22_islands)C++17
컴파일 에러
0 ms0 KiB
#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<vector<pair<int,int>>> g(N); for(int i = 0;i<M;i++) { g[U[i]].push_back({V[i],i}); } bool subt2=1; { vector<vector<int>> a(N, vector<int>(N, -1)); for(int i = 0;i<M;i++) { a[U[i]][V[i]] = i; } for(int i= 0;i<N;i++) { for(int j = 0;j<N;j++) { if(i==j)continue; if(a[i][j]==-1)subt2=false; } } } if(N == 2) { if(g[0].size() < 2)return false; if(g[1].size() == 0)return false; vector<int> v; v.push_back(g[0][0].second); v.push_back(g[1][0].second); v.push_back(g[0][1].second); v.push_back(g[0][0].second); v.push_back(g[1][0].second); v.push_back(g[0][1].second); return v; } else if(subt2) { if(N <= 2) { return false; } vector<vector<int>> a(N, vector<int>(N, -1)); for(int i = 0;i<M;i++) { a[U[i]][V[i]] = i; }is even, and for each vector<int> ans={a[0][1], a[1][2], a[2][1], a[0][1], a[0][2], a[1][2], a[2][1], a[0][2]}; return ans; } else { } return true; }

컴파일 시 표준 에러 (stderr) 메시지

islands.cpp: In function 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, std::vector<int>, std::vector<int>)':
islands.cpp:44:4: error: 'is' was not declared in this scope
   44 |   }is even, and for each
      |    ^~
islands.cpp:46:10: error: 'ans' was not declared in this scope; did you mean 'abs'?
   46 |   return ans;
      |          ^~~
      |          abs