Submission #759796

#	Time	Username	Problem	Language	Result	Execution time	Memory
759796		raysh07	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	36 ms	7116 KiB

molecules

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

std::vector<int> find_subset(int l, int r, std::vector<int> w) {
    int n = w.size();
    vector <pair<int, int>> a(n);
    for (int i = 0; i < n; i++){
        a[i] = make_pair(w[i], i);
    }
    sort(a.begin(), a.end());
    vector <long long> p(n + 1, 0);
    for (int i = 1; i <= n; i++) p[i] = p[i - 1] + a[i - 1].first;
    
    for (int i = 1; i <= n; i++){
        long long mi = p[i];
        long long mx = p[n] - p[n - i];
        
        if (mx < l || mi > r) continue;
        
        for (int j = i; j <= n; j++){
            long long sum = p[j] - p[j - i];
            if (sum >= l && sum <= r){
                vector <int> ans;
                for (int k = j - i + 1; k <= j; k++) ans.push_back(a[k - 1].second);
                return ans;
            }
        }
    }
    return std::vector<int>(0);
}

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