제출 #1034549

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1034549		Mr_Husanboy	수천개의 섬 (IOI22_islands)	C++17	0 / 100	1 ms	600 KiB

islands

#include "islands.h"

#include <variant>
#include <bits/stdc++.h>

using namespace std;

#define ff first
#define ss second
#define all(a) (a).begin(), (a).end()
#define ll long long
const int mod = 1000002022;

vector<int> state, p;
int n, m; 
vector<vector<int>> g;
template<typename T>
int len(T &a){return a.size();}

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());


variant<bool, vector<int>> find_journey(
    int n, int m, std::vector<int> u, std::vector<int> v) {

  if(len(g[0]) <= 1) return false;
  return true;
  vector<vector<int>> g(n);
  for(int i = 0; i < m; i ++) g[u[i]].push_back(i);
    
  if(n == 2){
    if(len(g[1]) == 0) return false;
    return vector {g[0][0], g[1][0], g[0][1], g[0][0], g[1][0], g[0][1]};
  }


  auto dfs = [&](auto &dfs, int i, int p = -1)->void{

  };

}

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:37:8: warning: variable 'dfs' set but not used [-Wunused-but-set-variable]
   37 |   auto dfs = [&](auto &dfs, int i, int p = -1)->void{
      |        ^~~

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