Submission #950987

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
950987	2024-03-21T03:31:29 Z	GrandTiger1729	Toxic Gene (NOI23_toxic)	C++17	94.6 / 100	58 ms	1620 KB

toxic

#include "toxic.h"
#include <bits/stdc++.h>
using namespace std;

const int K = 8, T = 30;
vector<int> encode(vector<int> qry)
{
	int n = qry.size();
	vector<int> ret;
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < (1 << i); j++)
		{
			ret.push_back(qry[i]);
		}
	}
	return ret;
}
void determine_type(int n)
{
	vector<int> ord(n);
	iota(ord.begin(), ord.end(), 1);
	random_shuffle(ord.begin(), ord.end());
	string ans(n + 1, 'R');
	int cnt = 0;
	int tt = -1;
	vector<int> stk;
	int i = 0;
	while (cnt < T && i < n)
	{
		int j = min(n, i + K);
		int xx = -1;
		{
			vector<int> qry;
			for (int k = i; k < j; k++)
			{
				qry.push_back(ord[k]);
			}
			xx = query_sample(encode(qry));
			if (xx == (1 << qry.size()) - 1)
			{
				stk.insert(stk.end(), qry.begin(), qry.end());
				i = j;
				continue;
			}
		}
		auto make_query = [&](int mid)
		{
			vector<int> qry;
			for (int k = i; k < mid; k++)
			{
				qry.push_back(ord[k]);
			}
			int x = min(stk.size(), K - qry.size());
			for (int k = 0; k < x; k++)
			{
				qry.push_back(stk.end()[-1 - k]);
			}
			return qry;
		};
		int l = i, r = j;
		while (l < r - 1)
		{
			int mid = (l + r) / 2;
			vector<int> qry = make_query(mid);
			int res = query_sample(encode(qry));
			if (res == (1 << qry.size()) - 1)
			{
				l = mid;
			}
			else
			{
				int x = qry.size() - (mid - i);
				for (int k = mid - i; k < qry.size(); k++)
				{
					ans[qry[k]] = (res >> k & 1) ? 'S' : 'R';
				}
				for (int k = 0; k < x; k++)
				{
					stk.pop_back();
				}
				r = mid;
			}
		}
		vector<int> qry = make_query(l);
		for (int k = 0; k < l - i; k++)
		{
			ans[qry[k]] = (xx >> k & 1) ? 'S' : 'R';
		}
		cerr << "ans " << ans << endl;
		ans[ord[l]] = 'T';
		cerr << "OK " << l << ' ' << ord[l] << endl;
		i = l + 1;
		tt = ord[l];
		cnt++;
	}
	while (i < n)
	{
		stk.push_back(ord[i++]);
	}
	cerr << ans << endl;
	for (int j = 0; j < stk.size(); j++)
	{
		cerr << stk[j] << endl;
	}
	cerr << "tt " << tt << endl;
	while (stk.size())
	{
		int x = min((int)stk.size(), K);
		vector<int> qry;
		for (int k = 0; k < x; k++)
		{
			qry.push_back(stk.back());
			stk.pop_back();
		}
		auto tmp = encode(qry);
		tmp.push_back(tt);
		int res = query_sample(tmp);
		for (int k = 0; k < (int)qry.size(); k++)
		{
			ans[qry[k]] = (res >> k & 1) ? 'S' : 'R';
		}
	}
	cerr << ans << endl;
	for (int j = 1; j <= n; j++)
	{
		answer_type(j, ans[j]);
	}
}

Compilation message

toxic.cpp: In function 'void determine_type(int)':
toxic.cpp:74:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |     for (int k = mid - i; k < qry.size(); k++)
      |                           ~~^~~~~~~~~~~~
toxic.cpp:102:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |  for (int j = 0; j < stk.size(); j++)
      |                  ~~^~~~~~~~~~~~

Subtask #1

94.6 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	56 ms	1104 KB	Output is correct
3	Partially correct	57 ms	852 KB	Partially correct
4	Correct	55 ms	1108 KB	Output is correct
5	Correct	45 ms	1360 KB	Output is correct
6	Correct	45 ms	1456 KB	Output is correct
7	Correct	44 ms	1340 KB	Output is correct
8	Correct	46 ms	1420 KB	Output is correct
9	Partially correct	58 ms	1364 KB	Partially correct
10	Correct	57 ms	1480 KB	Output is correct
11	Partially correct	46 ms	1360 KB	Partially correct
12	Correct	57 ms	1108 KB	Output is correct
13	Correct	56 ms	1108 KB	Output is correct
14	Partially correct	57 ms	1104 KB	Partially correct
15	Correct	50 ms	1620 KB	Output is correct
16	Correct	44 ms	1360 KB	Output is correct
17	Correct	45 ms	1260 KB	Output is correct
18	Partially correct	46 ms	1364 KB	Partially correct
19	Partially correct	44 ms	1372 KB	Partially correct
20	Partially correct	45 ms	1424 KB	Partially correct
21	Partially correct	47 ms	1364 KB	Partially correct
22	Correct	54 ms	980 KB	Output is correct
23	Correct	56 ms	968 KB	Output is correct
24	Partially correct	55 ms	1108 KB	Partially correct
25	Correct	55 ms	1144 KB	Output is correct
26	Correct	54 ms	1044 KB	Output is correct
27	Correct	58 ms	1108 KB	Output is correct
28	Correct	55 ms	1108 KB	Output is correct
29	Correct	45 ms	1360 KB	Output is correct
30	Correct	45 ms	1436 KB	Output is correct
31	Correct	45 ms	1368 KB	Output is correct
32	Partially correct	45 ms	1472 KB	Partially correct
33	Partially correct	45 ms	1360 KB	Partially correct
34	Partially correct	45 ms	1364 KB	Partially correct
35	Partially correct	45 ms	1360 KB	Partially correct
36	Partially correct	6 ms	348 KB	Partially correct