Submission #853176

#	Time	Username	Problem	Language	Result	Execution time	Memory
853176		parsadox2	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

int[] find_subset(int l , int r , int[] t)
{
	vector <pair<int ,int>> ar;
	int n = t.size();
	for(int i = 0 ; i < n ; i++)
		ar.push_back({t[i] , i + 1});
	sort(ar.begin() , ar.end());
	int num = 0 , sum = 0;
	for(int i = n - 1 ; i > -1 ; i--)
	{
		sum += ar[i].first;
		num++;
		if(sum >= l)
			break;
	}
	num--;
	if(sum < l)
	{
		int res[0];
		return res;
	}
	int sum2 = 0;
	for(int i = 0 ; i <= num ; i++)
		sum2 += ar[i].first;
	if(sum2 > r)
	{
		int res[0];
		return res;
	}
	int res[num + 1];
	int pos = 0;
	int las = n - 1;
	while(sum2 < l)
	{
		sum2 += (ar[las].first - ar[num].first);
		num--;
		res[pos] = (ar[las].second);
		pos++;
		las--;
	}
	for(int i = num ; i >= 0 ; i--)
	{
		res[pos] = (ar[i].second);
		pos++;
	}
	reverse(res.begin() , res.end());
	return res;
}

Compilation message (stderr)

molecules.cpp:1:4: error: structured binding declaration cannot have type 'int'
    1 | int[] find_subset(int l , int r , int[] t)
      |    ^~
molecules.cpp:1:4: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
molecules.cpp:1:4: error: empty structured binding declaration
molecules.cpp:1:7: error: expected initializer before 'find_subset'
    1 | int[] find_subset(int l , int r , int[] t)
      |       ^~~~~~~~~~~