Submission #491643

#	Time	Username	Problem	Language	Result	Execution time	Memory
491643		ljuba	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	57 ms	5576 KiB

molecules

#include "molecules.h"

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

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

    vector<int> redosled(n);
    iota(redosled.begin(), redosled.end(), 0);
    sort(redosled.begin(), redosled.end(), [&](int a, int b) {
        return v[a] < v[b];
    });

    sort(v.begin(), v.end());
    ll suma = 0;
    for(int i = 0, j = 0; i < n; ++i) {
        suma += v[i];
        while(j <= i && suma > u) {
            suma -= v[j++];
        }
        if(l <= suma && suma <= u) {
            vector<int> ans;
            for(int k = j; k <= i; ++k) {
                ans.push_back(redosled[k]);
            }
            return ans;
        }
    }

    return {};
}

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