Submission #528155

#	Time	Username	Problem	Language	Result	Execution time	Memory
528155		happypotato	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	45 ms	5676 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define ff first
#define ss second
#define pb push_back
using namespace std;
vector<int> find_subset(int l, int u, vector<int> w) {
    int n = w.size();
    vector<pii> v(n + 1);
    for (int i = 0; i < n; i++) {
        v[i + 1] = {w[i], i};
    }
    sort(v.begin() + 1, v.end(), greater<pii>());
    int ptr = 0;
    ll int sum = 0;
    for (int i = 1; i <= n; i++) {
        if (sum <= 0) {
            sum = 0;
            ptr = i - 1;
        }
        while (ptr < n && sum < l) {
            ptr++;
            sum += v[ptr].ff;
        }
        if (l <= sum && sum <= u) {
            vector<int> res;
            for (int j = i; j <= ptr; j++) {
                res.pb(v[j].ss);
            }
            return res;
        }
        sum -= v[i].ff;
    }
    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