Submission #114701

#	Time	Username	Problem	Language	Result	Execution time	Memory
114701		davitmarg	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	65 ms	6640 KiB

molecules

/*DavitMarg*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <set>
#include <queue>
#include <iomanip>
#include <bitset>
#include <stack>
#include <cassert>
#include <iterator>
#include <ctype.h>
#include <fstream>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin (),v.end()
using namespace std;

LL ll, rr;
int n;
vector<pair<LL, LL>> a;
vector<int> ans;
LL l,r,sum,mx;

int Main()
{
	sort(all(a));
	l = r = 0;
	sum = a[r].first;
	while (l < n)
	{
		if (r < l)
		{
			r = l;
			sum = a[r].first;
		}
		while (r + 1 < n && sum + a[r + 1].first <= rr)
		{
			r++;
			sum += a[r].first;
		}
		if (sum >= ll && sum <= rr)
			mx = max(mx, r - l + 1);
		sum -= a[l].first;
		l++;
	}

	l = r = 0;
	sum = a[r].first;
	while (l < n)
	{
		if (r < l)
		{
			r = l;
			sum = a[r].first;
		}
		while (r + 1 < n && sum + a[r + 1].first <= rr)
		{
			r++;
			sum += a[r].first;
		}
		if (sum >= ll && sum<=rr  && r - l + 1 == mx)
		{
			for (int i = l; i <= r; i++)
				ans.PB(a[i].second);
			break;
		}
		sum -= a[l].first;
		l++;
	}
	sort(all(ans));
	return 0;
}

vector<int> find_subset(int L, int R, vector<int> w)
{
	ll = L;
	rr = R;
	n = w.size();
	while (!w.empty())
	{
		a.PB(MP(w.back(), w.size() - 1));
		w.pop_back();
	}
	Main();
	return ans;
}

#ifdef death

int main()
{
	int L, R, N;
	vector<int> W;
	cin >> N >> L >> R;
	for (int i = 0; i < N; i++)
	{
		W.PB(0);
		cin >> W.back();
	}
	W = find_subset(L, R, W);
	cout << W.size() << endl;
	reverse(all(W));
	while (!W.empty())
	{
		cout << W.back() << " ";
		W.pop_back();
	}
	cout << endl;
	return 0;
}

#endif 


/*



*/

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