Submission #531394

#TimeUsernameProblemLanguageResultExecution timeMemory
531394tkwiatkowskiDetecting Molecules (IOI16_molecules)C++17
31 / 100
4 ms492 KiB
/*
	Zadanie: Detecting Molecules
	Autor: Tomasz Kwiatkowski
*/

#include <bits/stdc++.h>
#include "molecules.h"

#define fi first
#define se second
#define pb push_back

using namespace std;
typedef long long ll;

const int MAXN = 1e6 + 7;
const int INF = 1e9 + 7;

vector<int> find_subset(int l, int u, vector<int> w) {
	int n = w.size();
	vector<pair<int, int>> molecules(n);
	for (int i = 0; i < n; ++i)
		molecules[i] = {w[i], i};
	sort(molecules.begin(), molecules.end());

	vector<int> ans;
	int r = 0;
	ll sum = 0;
	for (int left = 0; left < n; ++left) {
		while (r < n && sum + molecules[r].fi <= u) {
			sum += molecules[r].fi;
			if (l <= sum) {
				for (int i = left; i <= r; ++i)
					ans.pb(molecules[i].se);
				return ans;
			}
			++r;
		}
		sum -= molecules[left].fi;
		r = max(r, left + 1);
	}
    return ans;
}
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