Submission #88255

#	Time	Username	Problem	Language	Result	Execution time	Memory
88255		amiratou	Detecting Molecules (IOI16_molecules)	C++14	9 / 100	3 ms	640 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> vec,ans;
bool used[200005];
unordered_map<long long,bool> mymap;
int n,L,R;
bool solve(long long sum,int idx){
	if(sum>R)
		return 0;
	if(sum>=L&&sum<=R){
		for (int i = 0; i < n; ++i)
		{
			if(used[i])
				ans.push_back(i);
		}
		return 1;
	}
	if(mymap.find(sum)!=mymap.end())
		return 0;
	for (int i = idx+1; i < n; ++i)
	{
		used[i]=1;
		if(solve(sum+vec[i],i))return 1;
		mymap[sum]=1;
		used[i]=0;
	}
	return 0;
}
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
	n=w.size();
	L=l;R=u;
	vec=w;
  	sort(vec.begin(),vec.end());
	if(!solve(0,-1))
		return vector<int>(0);
    return ans;
}

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