Submission #369640

#	Time	Username	Problem	Language	Result	Execution time	Memory
369640		Jasiekstrz	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	294 ms	6240 KiB

molecules

#include<bits/stdc++.h>
#include "molecules.h"
#define fi first
#define se second
using namespace std;
vector<int> find_subset(int l,int u,vector<int> w)
{
	vector<pair<int,int>> xd;
	for(unsigned i=0;i<w.size();i++)
		xd.push_back({w[i],i});
	sort(xd.begin(),xd.end());
	long long s=0;
	int n=w.size(),i,j;
	vector<int> res;
	for(i=0;i<n && s<l;i++)
		s+=xd[i].fi;
	if(u<s)
		s-=xd[--i].fi;
	int m=i-1;
	for(j=0;j<=m && n-j-1>m && s<l;j++)
	{
		s+=xd[n-j-1].fi;
		s-=xd[j].fi;
	}
	if(s<l || u<s)
		return res;
	for(i=j;i<=m;i++)
		res.push_back(xd[i].se);
	for(i=0;i<j;i++)
		res.push_back(xd[n-i-1].se);
	return res;
}

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