제출 #1341357

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1341357		kantaponz	Detecting Molecules (IOI16_molecules)	C++20	0 / 100	1 ms	412 KiB

molecules

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

#define ll long long

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    int n;
    vector<pair<ll,int>> v;
    for (int i = 0; i < n; i++) {
        v.emplace_back(w[i], i);
    }
    n = w.size();
    ll sum = 0;
    sort(v.begin(), v.end());
    vector<int> ans;
    priority_queue<pair<ll,int>, vector<pair<ll,int>>, greater<pair<ll,int>>> pq;
    int i = 0;
    while (i < n) {
        while (i < n && sum < l) {
            auto [w, idx] = v[i];
            pq.emplace(w, idx);
            sum += w;
            i++;
        }
        if (sum >= l && sum <= u) {
            while (!pq.empty()) {
                auto [w, idx] = pq.top();
                pq.pop();
                ans.emplace_back(idx);
            }
            return ans;
        }
        while (sum > u) {
            sum -= pq.top().first;
            pq.pop();
        }
        if (sum >= l && sum <= u) {
            while (!pq.empty()) {
                auto [w, idx] = pq.top();
                pq.pop();
                ans.emplace_back(idx);
            }
            return ans;
        }
    }

    return ans;
}

/*
g++ grader.cpp molecules.cpp -o o


*/

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