Submission #380363

#	Time	Username	Problem	Language	Result	Execution time	Memory
380363		ritul_kr_singh	Detecting Molecules (IOI16_molecules)	C++17	46 / 100	4 ms	768 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"
using namespace std;
 
vector<int> find_subset(int l, int u, vector<int> w){
	vector<pair<int, int>> a;
	int curr = 0;
	int _sum = 0, n = w.size();
	for(int i : w) a.emplace_back(i, curr++), _sum += i;
	sort(a.begin(), a.end());
	for(int _=0; _<2; ++_){
		int sum = _sum;
		int j = 0;
		for(int i=0; i<n; ++i){
			sum += a[i].first;
			while(j<=i) sum -= a[j++].first;
			while(j<n and sum>u) sum -= a[j++].first;
			if(l<=sum and sum<=u){
				vector<int> ans;
				for(int k=0; k<=i; ++k) ans.push_back(a[k].second);
				for(int k=n-1; k>=j; --k) ans.push_back(a[k].second);
				sort(ans.begin(), ans.end());
				return ans;
			}
		}
		reverse(a.begin(), a.end());
	}
	return {};
}

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 15 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31