Submission #794787

#	Time	Username	Problem	Language	Result	Execution time	Memory
794787		bane	Detecting Molecules (IOI16_molecules)	C++17	9 / 100	2 ms	340 KiB

molecules

#include<bits/stdc++.h>

#include "molecules.h"

using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

vector<int> find_subset(int l, int u, vector<int> w) {
    int n = w.size();
	vector<pair<int,int>> wp(n);
	for (int i = 0; i < n; i++)
    wp[i] = {w[i], i};
	mt19937 rnd(239);
	for(int kk = 0; kk < 1000; kk++) {
		shuffle(wp.begin(), wp.end(), rnd);
		int sum = 0, i = 0;
		while (i < n && sum < l)
			sum += wp[i++].first;
		if (l <= sum && sum <= u) {
			vector<int> res(i);
			for (int j = 0; j <= i; j++)
				res[j] = wp[j].second;
			return res;
		}
	}
	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