Submission #1187054

#	Time	Username	Problem	Language	Result	Execution time	Memory
1187054		GoBananas69	Detecting Molecules (IOI16_molecules)	C++20	100 / 100	33 ms	3656 KiB

molecules

#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;
typedef long long ll;

vector<int> find_subset(int k, int u, vector<int> w) {
    int n = w.size();

    vector<pair<int, int>> a(n);
    for (int i = 0; i < n; i++) {
        a[i] = {w[i], i};
    }
    sort(a.begin(), a.end());

    long long sum = 0;
    for (int l = 0, r = 0; r < n; r++) {
        sum += a[r].first;
        while (sum > u) {
            sum -= a[l].first;
            l++;
        }
        if (k <= sum && sum <= u) {
            vector<int> res;
            for (int i = l; i <= r; i++) {
                res.push_back(a[i].second);
            }
            return res;
        }
    }

    return {};
}

// signed main() {
//     cin.tie(0)->sync_with_stdio(0);
//     vector<int> res = find_subset(15, 17, {8, 7});
//     for (int &i: res) {
//         cout << i << ' ';
//     }
// }

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