Submission #1229354

#	Time	Username	Problem	Language	Result	Execution time	Memory
1229354		diana	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	190 ms	12144 KiB

molecules

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

vector<int> find_subset(int l, int u, vector<int> w)
{
    int n = w.size();
    priority_queue<int> pq, used;
    for(int i=0; i<n; i++)
        pq.push(w[i]);

    map<int, int> m;
    ll sum = 0;
    while(!pq.empty())
    {
        while(sum < l && !pq.empty())
        {
            sum += pq.top();
            m[pq.top()]++;
            used.push(pq.top());
            pq.pop();
        }

        if(l <= sum && sum <= u)
            break;

        while(u < sum && !used.empty())
        {
            sum -= used.top();
            m[used.top()]--;
            used.pop();
        }
    }

    vector<int> ans;
    for(int i=0; i<n; i++)
    {
        if(m[w[i]] > 0)
            ans.push_back(i);
        m[w[i]]--;
    }
    if(sum < l || u < sum)
        ans.clear();

    return ans;
}

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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