Submission #651343

#	Time	Username	Problem	Language	Result	Execution time	Memory
651343		ayalla	Detecting Molecules (IOI16_molecules)	C++14	9 / 100	1 ms	300 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;

#define ll long long int

vector<int> find_subset(int l, int u, vector<int> w)
{
  int r = u;
  int n = w.size();
  set<pair<ll, ll>> s;
  ll sum = 0;
  for (int i = 0; i < n; i++)
  {
    s.insert({w[i], i});
    sum += w[i];
  }
  vector<bool> vis(n, 1);
  while (sum > r)
  {
    ll dif = sum - r;
    auto it = s.lower_bound({dif, -1});
    if (it != s.end() && (sum - (*it).first) >= l && (sum - (*it).first) <= r)
    {
      pair<ll, ll> x = *it;
      sum -= x.first;
      vis[x.second] = 0;
      break;
    }
    else
    {
      pair<ll, ll> x = *s.begin();
      sum -= x.first;
      vis[x.second] = 0;
      s.erase(x);
    }
  }
  vector<int> ans;
  if (sum < l)
    return ans;
  for (int i = 0; i < n; i++)
  {
    if (vis[i])
      ans.push_back(i);
  }
  return ans;
}

• Subtask 1: 9 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31