Submission #1051192

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051192		Trent	Thousands Islands (IOI22_islands)	C++17	6.75 / 100	17 ms	5584 KiB

islands

#include "islands.h"
#include "bits/stdc++.h"
using namespace std;
#define forR(i, x) for(int i = 0; i < (x); ++i)
#define REP(i, a, b) for(int i = (a); i < (b); ++i)
#define all(x) x.begin(), x.end()
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef vector<bool> vb;

std::variant<bool, std::vector<int>> find_journey(
    int N, int M, std::vector<int> U, std::vector<int> V) {
      if(N == 2) {
        vi c0, c1;
        forR(i, M) {
          if(U[i] == 0) c0.push_back(i);
          else c1.push_back(i);
        }
        if(c0.size() < 2 || c1.size() < 1) return false;
        else {
          return vector<int> {c0[0], c1[0], c0[1], c0[0], c1[0], c0[1]};
        }
      }
}

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:26:1: warning: control reaches end of non-void function [-Wreturn-type]
   26 | }
      | ^

• Subtask 1: 5 / 5
• Subtask 2: 1.75 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45