Submission #1301882

#	Time	Username	Problem	Language	Result	Execution time	Memory
1301882		PakinDioxide	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	40 ms	8116 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
#define ll long long

using namespace std;

vector<int> find_subset(int l, int r, vector<int> w) {
    int n = w.size();
    vector <pair <ll, int>> a(n);
    for (int i = 0; i < n; i++) a[i] = make_pair(w[i], i);
    a.emplace_back(0, -1);
    sort(a.begin(), a.end());
    for (int i = 1; i <= n; i++) a[i].first += a[i-1].first;
    vector <int> ans;
    for (int i = 1; i <= n; i++) {
        if (a[i].first < l) continue;
        ll x = a[i].first - l;
        int idx = prev(upper_bound(a.begin(), a.begin() + i, make_pair(x, INT_MAX))) - a.begin();
        ll ss = a[i].first - a[idx].first;
        if (ss >= l && ss <= r) {
            for (int j = idx+1; j <= i; j++) ans.emplace_back(a[j].second);
            break;
        }
    }
    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