Submission #1034549

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034549		Mr_Husanboy	Thousands Islands (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{

  };

}

Compilation message (stderr)

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{
      |        ^~~

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