Submission #491979

#	Time	Username	Problem	Language	Result	Execution time	Memory
491979		collodel	Detecting Molecules (IOI16_molecules)	C++17	9 / 100	1 ms	256 KiB

molecules

#include "molecules.h"
#include <deque>
#include <algorithm>
#include <numeric>

using namespace std;

using ll = long long;

std::vector<int> find_subset(int l, int u, std::vector<int> w) {

    int i = 0;
    int N = w.size();
    ll sum = 0;

    vector<int> ord(N);
    iota(ord.begin(), ord.end(), 0);
    sort(ord.begin(), ord.end(), [&](int a, int b){return w[a] < w[b];});
    deque<ll> ans;

    for(int j = 0; j < N; ++j) {
        sum += w[ord[j]]; // prendi l'elemento
        ans.push_back(j);

        // togli gli elementi sbagliati
        while(sum > u) {
            sum -= w[ord[i]];
            ans.pop_front();
            i++;
        }

        if(sum >= l) {
            vector<int> ret;
            for(auto &x : ans) ret.push_back(x);


            return ret;
        }
    }

    // nessuna risposta
    return vector<int>();
}

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