Submission #915265

#	Time	Username	Problem	Language	Result	Execution time	Memory
915265		SmuggingSpun	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	45 ms	4952 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>p(w.size());
	iota(p.begin(), p.end(), 0);
	sort(p.begin(), p.end(), [&] (int i, int j) -> bool{
		return w[i] < w[j];
	});
	int index = int(w.size()) - 1;
	ll sum = 0;
	while(index > -1 && sum < l){
		sum += w[p[index--]];
	}
	int length = int(w.size()) - index - 1;
	while(index > -1 && sum > u){
		sum -= w[p[index + length]] - w[p[index]];
		index--;
	}
	if(sum > u || sum < l){
		return vector<int>{};
	}
	vector<int>ans(length);
	for(int i = 1; i <= length; i++){
		ans[i - 1] = p[index + i];
	}
	return ans;
}

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